diff --git a/profiler_gui/arbitrary_value_tooltip.cpp b/profiler_gui/arbitrary_value_tooltip.cpp
index a78b586..1da8f9b 100644
--- a/profiler_gui/arbitrary_value_tooltip.cpp
+++ b/profiler_gui/arbitrary_value_tooltip.cpp
@@ -6,7 +6,7 @@
 * email             : v.s.zarubkin@gmail.com
 * ----------------- :
 * description       : The file contains implementation of ArbitraryValueToolTip which is used
-*                   : for displaying arbitrary value in Diagram and Hierarchy widgets.
+*                   : for displaying arbitrary value in Diagram and StatsTree widgets.
 * ----------------- :
 * license           : Lightweight profiler library for c++
 *                   : Copyright(C) 2016-2019  Sergey Yagovtsev, Victor Zarubkin
diff --git a/profiler_gui/arbitrary_value_tooltip.h b/profiler_gui/arbitrary_value_tooltip.h
index 99f8c0a..740857e 100644
--- a/profiler_gui/arbitrary_value_tooltip.h
+++ b/profiler_gui/arbitrary_value_tooltip.h
@@ -6,7 +6,7 @@
 * email             : v.s.zarubkin@gmail.com
 * ----------------- :
 * description       : The file contains declaration of ArbitraryValueToolTip which is used
-*                   : for displaying arbitrary value in Diagram and Hierarchy widgets.
+*                   : for displaying arbitrary value in Diagram and StatsTree widgets.
 * ----------------- :
 * license           : Lightweight profiler library for c++
 *                   : Copyright(C) 2016-2019  Sergey Yagovtsev, Victor Zarubkin
diff --git a/profiler_gui/blocks_graphics_view.cpp b/profiler_gui/blocks_graphics_view.cpp
index 1a237a9..051dc86 100644
--- a/profiler_gui/blocks_graphics_view.cpp
+++ b/profiler_gui/blocks_graphics_view.cpp
@@ -1721,7 +1721,7 @@ void BlocksGraphicsView::mouseReleaseEvent(QMouseEvent* _event)
 
 //////////////////////////////////////////////////////////////////////////
 
-void BlocksGraphicsView::addSelectionToHierarchy()
+void BlocksGraphicsView::addSelectionToStatsTree()
 {
     if (!m_selectionItem->isVisible())
         return;
@@ -1806,7 +1806,7 @@ void BlocksGraphicsView::onInspectCurrentView(bool strict)
 
         emit EASY_GLOBALS.events.rulerVisible(true);
 
-        addSelectionToHierarchy();
+        addSelectionToStatsTree();
     }
     else
     {
diff --git a/profiler_gui/blocks_graphics_view.h b/profiler_gui/blocks_graphics_view.h
index ac5c941..4201114 100644
--- a/profiler_gui/blocks_graphics_view.h
+++ b/profiler_gui/blocks_graphics_view.h
@@ -301,7 +301,7 @@ private:
 
     void revalidateOffset();
 
-    void addSelectionToHierarchy();
+    void addSelectionToStatsTree();
 
 private slots:
 
diff --git a/profiler_gui/blocks_tree_widget.cpp b/profiler_gui/blocks_tree_widget.cpp
index e2c35ba..90c6023 100644
--- a/profiler_gui/blocks_tree_widget.cpp
+++ b/profiler_gui/blocks_tree_widget.cpp
@@ -97,7 +97,9 @@
 
 //////////////////////////////////////////////////////////////////////////
 
-const int HIERARCHY_BUILDER_TIMER_INTERVAL = 40;
+namespace {
+
+const int TREE_BUILDER_TIMER_INTERVAL = 40;
 
 const bool PLAIN_MODE_COLUMNS[COL_COLUMNS_NUMBER] = {
       true  // COL_NAME = 0,
@@ -183,6 +185,8 @@ const bool SELECTION_MODE_COLUMNS[COL_COLUMNS_NUMBER] = {
     , true  // COL_NCALLS_PER_AREA,
 };
 
+} // end of namespace <noname>.
+
 //////////////////////////////////////////////////////////////////////////
 
 BlocksTreeWidget::BlocksTreeWidget(QWidget* _parent)
@@ -366,7 +370,7 @@ BlocksTreeWidget::BlocksTreeWidget(QWidget* _parent)
         }
     }
 
-    m_hintLabel = new QLabel("Use Right Mouse Button on the Diagram to build a hierarchy...\n"
+    m_hintLabel = new QLabel("Use Right Mouse Button on the Diagram to build a tree...\n"
                              "Way 1: Press the button >> Move mouse >> Release the button\n"
                              "Way 2: Just click the right mouse button on any block", this);
     m_hintLabel->setObjectName(QStringLiteral("BlocksTreeWidget_HintLabel"));
@@ -492,15 +496,15 @@ void BlocksTreeWidget::mousePressEvent(QMouseEvent* _event)
 
 void BlocksTreeWidget::onFillTimerTimeout()
 {
-    if (m_hierarchyBuilder.done())
+    if (m_treeBuilder.done())
     {
         m_fillTimer.stop();
 
         ThreadedItems toplevelitems;
-        m_hierarchyBuilder.takeItems(m_items);
-        m_hierarchyBuilder.takeTopLevelItems(toplevelitems);
-        auto error = m_hierarchyBuilder.error();
-        m_hierarchyBuilder.interrupt();
+        m_treeBuilder.takeItems(m_items);
+        m_treeBuilder.takeTopLevelItems(toplevelitems);
+        auto error = m_treeBuilder.error();
+        m_treeBuilder.interrupt();
         {
             const QSignalBlocker b(this);
             for (auto& item : toplevelitems)
@@ -557,7 +561,7 @@ void BlocksTreeWidget::onFillTimerTimeout()
     }
     else if (m_progress != nullptr)
     {
-        m_progress->setValue(m_hierarchyBuilder.progress());
+        m_progress->setValue(m_treeBuilder.progress());
     }
 }
 
@@ -614,8 +618,8 @@ void BlocksTreeWidget::setTreeBlocks(const profiler_gui::TreeBlocks& _blocks, pr
         m_bLocked = true;
         m_hintLabel->hide();
         createProgressDialog();
-        m_hierarchyBuilder.fillTreeBlocks(m_inputBlocks, _session_begin_time, _left, _right, _strict, m_mode);
-        m_fillTimer.start(HIERARCHY_BUILDER_TIMER_INTERVAL);
+        m_treeBuilder.fillTreeBlocks(m_inputBlocks, _session_begin_time, _left, _right, _strict, m_mode);
+        m_fillTimer.start(TREE_BUILDER_TIMER_INTERVAL);
     }
 
     //StubLocker l;
@@ -647,7 +651,7 @@ void BlocksTreeWidget::clearSilent(bool _global)
 {
     const QSignalBlocker b(this);
 
-    m_hierarchyBuilder.interrupt();
+    m_treeBuilder.interrupt();
     destroyProgressDialog();
     m_hintLabel->show();
 
@@ -1545,7 +1549,7 @@ void BlocksTreeWidget::saveSettings()
 //////////////////////////////////////////////////////////////////////////
 //////////////////////////////////////////////////////////////////////////
 
-HierarchyWidget::HierarchyWidget(QWidget* _parent) : Parent(_parent)
+StatsWidget::StatsWidget(QWidget* _parent) : Parent(_parent)
     , m_tree(new BlocksTreeWidget(this))
     , m_searchBox(new QLineEdit(this))
     , m_foundNumber(new QLabel(QStringLiteral("<font color=\"red\">0</font> matches"), this))
@@ -1613,12 +1617,12 @@ HierarchyWidget::HierarchyWidget(QWidget* _parent) : Parent(_parent)
     m_foundNumber->hide();
 }
 
-HierarchyWidget::~HierarchyWidget()
+StatsWidget::~StatsWidget()
 {
     saveSettings();
 }
 
-void HierarchyWidget::loadSettings()
+void StatsWidget::loadSettings()
 {
     QSettings settings(profiler_gui::ORGANAZATION_NAME, profiler_gui::APPLICATION_NAME);
     settings.beginGroup("HierarchyWidget");
@@ -1630,7 +1634,7 @@ void HierarchyWidget::loadSettings()
     settings.endGroup();
 }
 
-void HierarchyWidget::saveSettings()
+void StatsWidget::saveSettings()
 {
     QSettings settings(profiler_gui::ORGANAZATION_NAME, profiler_gui::APPLICATION_NAME);
     settings.beginGroup("HierarchyWidget");
@@ -1638,19 +1642,19 @@ void HierarchyWidget::saveSettings()
     settings.endGroup();
 }
 
-void HierarchyWidget::enterEvent(QEvent* event)
+void StatsWidget::enterEvent(QEvent* event)
 {
     Parent::enterEvent(event);
     m_tree->updateHintLabelOnHover(true);
 }
 
-void HierarchyWidget::leaveEvent(QEvent* event)
+void StatsWidget::leaveEvent(QEvent* event)
 {
     Parent::leaveEvent(event);
     m_tree->updateHintLabelOnHover(false);
 }
 
-void HierarchyWidget::keyPressEvent(QKeyEvent* _event)
+void StatsWidget::keyPressEvent(QKeyEvent* _event)
 {
     switch (_event->key())
     {
@@ -1677,12 +1681,12 @@ void HierarchyWidget::keyPressEvent(QKeyEvent* _event)
 
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
-void HierarchyWidget::contextMenuEvent(QContextMenuEvent* _event)
+void StatsWidget::contextMenuEvent(QContextMenuEvent* _event)
 {
     m_tree->contextMenuEvent(_event);
 }
 
-void HierarchyWidget::showEvent(QShowEvent* event)
+void StatsWidget::showEvent(QShowEvent* event)
 {
     Parent::showEvent(event);
     m_searchBox->setFixedWidth(px(300));
@@ -1690,19 +1694,19 @@ void HierarchyWidget::showEvent(QShowEvent* event)
 
 /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
 
-BlocksTreeWidget* HierarchyWidget::tree()
+BlocksTreeWidget* StatsWidget::tree()
 {
     return m_tree;
 }
 
-void HierarchyWidget::clear(bool _global)
+void StatsWidget::clear(bool _global)
 {
     m_tree->clearSilent(_global);
     m_foundNumber->setText(QStringLiteral("<font color=\"red\">0</font> matches"));
     m_foundNumber->hide();
 }
 
-void HierarchyWidget::onSeachBoxReturnPressed()
+void StatsWidget::onSeachBoxReturnPressed()
 {
     if (m_searchButton->data().toBool())
         findNext(true);
@@ -1710,7 +1714,7 @@ void HierarchyWidget::onSeachBoxReturnPressed()
         findPrev(true);
 }
 
-void HierarchyWidget::onSearchBoxTextChanged(const QString& _text)
+void StatsWidget::onSearchBoxTextChanged(const QString& _text)
 {
     if (_text.isEmpty())
     {
@@ -1719,7 +1723,7 @@ void HierarchyWidget::onSearchBoxTextChanged(const QString& _text)
     }
 }
 
-void HierarchyWidget::findNext(bool)
+void StatsWidget::findNext(bool)
 {
     auto text = m_searchBox->text();
     if (text.isEmpty())
@@ -1752,7 +1756,7 @@ void HierarchyWidget::findNext(bool)
         m_foundNumber->show();
 }
 
-void HierarchyWidget::findPrev(bool)
+void StatsWidget::findPrev(bool)
 {
     auto text = m_searchBox->text();
     if (text.isEmpty())
@@ -1785,7 +1789,7 @@ void HierarchyWidget::findPrev(bool)
         m_foundNumber->show();
 }
 
-void HierarchyWidget::findNextFromMenu(bool _checked)
+void StatsWidget::findNextFromMenu(bool _checked)
 {
     if (!_checked)
         return;
@@ -1802,7 +1806,7 @@ void HierarchyWidget::findNextFromMenu(bool _checked)
     findNext(true);
 }
 
-void HierarchyWidget::findPrevFromMenu(bool _checked)
+void StatsWidget::findPrevFromMenu(bool _checked)
 {
     if (!_checked)
         return;
diff --git a/profiler_gui/blocks_tree_widget.h b/profiler_gui/blocks_tree_widget.h
index 20e9998..beac947 100644
--- a/profiler_gui/blocks_tree_widget.h
+++ b/profiler_gui/blocks_tree_widget.h
@@ -82,7 +82,7 @@ class BlocksTreeWidget : public QTreeWidget
 
 protected:
 
-    TreeWidgetLoader      m_hierarchyBuilder;
+    TreeWidgetLoader           m_treeBuilder;
     Items                            m_items;
     RootsMap                         m_roots;
     ::profiler_gui::TreeBlocks m_inputBlocks;
@@ -189,12 +189,12 @@ private:
 
 //////////////////////////////////////////////////////////////////////////
 
-class HierarchyWidget : public QWidget
+class StatsWidget : public QWidget
 {
     Q_OBJECT
 
     using Parent = QWidget;
-    using This = HierarchyWidget;
+    using This = StatsWidget;
 
 private:
 
@@ -208,8 +208,8 @@ public:
 
     // Public virtual methods
 
-    explicit HierarchyWidget(QWidget* _parent = nullptr);
-    ~HierarchyWidget() override;
+    explicit StatsWidget(QWidget* _parent = nullptr);
+    ~StatsWidget() override;
 
     void enterEvent(QEvent* event) override;
     void leaveEvent(QEvent* event) override;
diff --git a/profiler_gui/globals.cpp b/profiler_gui/globals.cpp
index 0cd552e..3ad9767 100644
--- a/profiler_gui/globals.cpp
+++ b/profiler_gui/globals.cpp
@@ -89,6 +89,7 @@ Globals::Globals()
     , frame_time(16700)
     , blocks_spacing(0)
     , blocks_size_min(2)
+    , histogram_column_width_min(2)
     , blocks_narrow_size(20)
     , max_fps_history(90)
     , fps_timer_interval(500)
@@ -111,7 +112,7 @@ Globals::Globals()
     , draw_histogram_borders(true)
     , hide_narrow_children(false)
     , hide_minsize_blocks(false)
-    , display_only_relevant_stats(false)
+    , hide_stats_for_single_blocks(false)
     , collapse_items_on_tree_close(false)
     , all_items_expanded_by_default(true)
     , only_current_thread_hierarchy(false)
diff --git a/profiler_gui/globals.h b/profiler_gui/globals.h
index 962d8cd..c2b0587 100644
--- a/profiler_gui/globals.h
+++ b/profiler_gui/globals.h
@@ -215,11 +215,12 @@ namespace profiler_gui {
         ::profiler::block_id_t         selected_block_id; ///< Current selected profiler block id
         uint32_t                                 version; ///< Opened file version (files may have different format)
 
-        uint32_t                        max_rows_count; ///< Maximum blocks count for the Hierarchy widget for the full call-stack mode
+        uint32_t                          max_rows_count; ///< Maximum blocks count for the StatsTree widget for the full call-stack mode
 
         float                                 frame_time; ///< Expected frame time value in microseconds to be displayed at minimap on graphics scrollbar
         int                               blocks_spacing; ///< Minimum blocks spacing on diagram
         int                              blocks_size_min; ///< Minimum blocks size on diagram
+        int                   histogram_column_width_min; ///< Minimum column width on histogram when borders are enabled
         int                           blocks_narrow_size; ///< Width indicating narrow blocks
         int                              max_fps_history; ///< Max frames history displayed in FPS Monitor
         int                           fps_timer_interval; ///< Interval in milliseconds for sending network requests to the profiled application (used by FPS Monitor)
@@ -245,7 +246,7 @@ namespace profiler_gui {
         bool                      draw_histogram_borders; ///< Draw borders for histogram columns or not
         bool                        hide_narrow_children; ///< Hide children for narrow graphics blocks (See blocks_narrow_size)
         bool                         hide_minsize_blocks; ///< Hide blocks which screen size is less than blocks_size_min
-        bool                 display_only_relevant_stats; ///< Display only relevant information in ProfTreeWidget (excludes min, max, average times if there are only 1 calls number)
+        bool                hide_stats_for_single_blocks; ///< Hide min, max, avg, median durations in stats tree if there is only 1 call for a block
         bool                collapse_items_on_tree_close; ///< Collapse all items which were displayed in the hierarchy tree after tree close/reset
         bool               all_items_expanded_by_default; ///< Expand all items after file is opened
         bool               only_current_thread_hierarchy; ///< Build hierarchy tree for current thread only
diff --git a/profiler_gui/graphics_scrollbar.cpp b/profiler_gui/graphics_scrollbar.cpp
index ff267e9..eb3e639 100644
--- a/profiler_gui/graphics_scrollbar.cpp
+++ b/profiler_gui/graphics_scrollbar.cpp
@@ -66,7 +66,6 @@ namespace {
 //////////////////////////////////////////////////////////////////////////
 
 EASY_CONSTEXPR int HIST_COLUMN_MIN_HEIGHT = 2;
-EASY_CONSTEXPR qreal HIST_COLUMN_MIN_WIDTH_WITH_BORDER = 3;
 
 //////////////////////////////////////////////////////////////////////////
 
@@ -251,24 +250,6 @@ void GraphicsHistogramItem::paintByPtr(QPainter* _painter)
     // MEDIAN & EXPECTED FRAME TIME
     if (!isEmpty())
     {
-        const qreal mdn = m_medianDuration * 1e-3;
-
-        if (m_bottomValue < mdn && mdn < m_topValue)
-        {
-            // Draw marker displaying expected frame_time step
-            const auto h = bottom - (mdn - m_bottomValue) * coeff;
-            _painter->setPen(Qt::DashDotDotLine);
-
-            auto w = width;
-            const auto boundary = widget->margin() - font_h;
-            if (h < (m_boundingRect.top() - boundary))
-                w = top_width;
-            else if (h > (bottom + boundary))
-                w = bottom_width;
-
-            _painter->drawLine(QLineF(0, h, w, h));
-        }
-
         if (m_bottomValue < EASY_GLOBALS.frame_time && EASY_GLOBALS.frame_time < m_topValue)
         {
             // Draw marker displaying expected frame_time step
@@ -406,24 +387,6 @@ void GraphicsHistogramItem::paintById(QPainter* _painter)
     // MEDIAN & EXPECTED FRAME TIME
     if (!isEmpty())
     {
-        const qreal mdn = m_medianDuration * 1e-3;
-
-        if (m_bottomValue < mdn && mdn < m_topValue)
-        {
-            // Draw marker displaying expected frame_time step
-            const auto h = bottom - (mdn - m_bottomValue) * coeff;
-            _painter->setPen(Qt::DashDotDotLine);
-
-            auto w = width;
-            const auto boundary = widget->margin() - font_h;
-            if (h < (m_boundingRect.top() - boundary))
-                w = top_width;
-            else if (h > (bottom + boundary))
-                w = bottom_width;
-
-            _painter->drawLine(QLineF(0, h, w, h));
-        }
-
         if (m_bottomValue < EASY_GLOBALS.frame_time && EASY_GLOBALS.frame_time < m_topValue)
         {
             // Draw marker displaying required frame_time step
@@ -1057,9 +1020,10 @@ bool GraphicsHistogramItem::updateImage()
     const auto beginTime = EASY_GLOBALS.begin_time;
     const auto autoHeight = EASY_GLOBALS.auto_adjust_histogram_height;
     const auto drawBorders = EASY_GLOBALS.draw_histogram_borders;
+    const auto minColumnWidth = EASY_GLOBALS.histogram_column_width_min;
     m_worker.enqueue([=] {
-        updateImageAsync(rect, regime, scale, left, right, right - left, value, window, top, bottom, bindMode,
-                         frameTime, beginTime, autoHeight, drawBorders);
+        updateImageAsync(rect, regime, scale, left, right, right - left, value, window, top, bottom,
+                         minColumnWidth, bindMode, frameTime, beginTime, autoHeight, drawBorders);
     }, m_bReady);
 
     return true;
@@ -1095,9 +1059,8 @@ void GraphicsHistogramItem::onImageUpdated()
 }
 
 void GraphicsHistogramItem::updateImageAsync(QRectF _boundingRect, HistRegime _regime, qreal _current_scale,
-    qreal _minimum, qreal _maximum, qreal _range,
-    qreal _value, qreal _width, qreal _top_duration, qreal _bottom_duration,
-    bool _bindMode, float _frame_time, profiler::timestamp_t _begin_time, bool _autoAdjustHist, bool _drawBorders)
+    qreal _minimum, qreal _maximum, qreal _range, qreal _value, qreal _width, qreal _top_duration, qreal _bottom_duration,
+    int _min_column_width, bool _bindMode, float _frame_time, profiler::timestamp_t _begin_time, bool _autoAdjustHist, bool _drawBorders)
 {
     const auto bottom = _boundingRect.height();//_boundingRect.bottom();
     const auto screenWidth = _boundingRect.width() * _current_scale;
@@ -1225,7 +1188,7 @@ void GraphicsHistogramItem::updateImageAsync(QRectF _boundingRect, HistRegime _r
         const auto dtime = _top_duration - _bottom_duration;
         const auto coeff = _boundingRect.height() / (dtime > 1e-3 ? dtime : 1.);
 
-        const qreal minWidth = _drawBorders ? HIST_COLUMN_MIN_WIDTH_WITH_BORDER : 1.;
+        const qreal minWidth = _drawBorders ? _min_column_width : 1;
         if (_drawBorders)
             p.setPen(profiler_gui::BLOCK_BORDER_COLOR);
 
@@ -1433,7 +1396,7 @@ void GraphicsHistogramItem::updateImageAsync(QRectF _boundingRect, HistRegime _r
         const auto dtime = _top_duration - _bottom_duration;
         const auto coeff = _boundingRect.height() / (dtime > 1e-3 ? dtime : 1.);
 
-        const qreal minWidth = _drawBorders ? HIST_COLUMN_MIN_WIDTH_WITH_BORDER : 1.;
+        const qreal minWidth = _drawBorders ? _min_column_width : 1;
         if (_drawBorders)
             p.setPen(profiler_gui::BLOCK_BORDER_COLOR);
 
diff --git a/profiler_gui/graphics_scrollbar.h b/profiler_gui/graphics_scrollbar.h
index baf4070..4f2d057 100644
--- a/profiler_gui/graphics_scrollbar.h
+++ b/profiler_gui/graphics_scrollbar.h
@@ -143,8 +143,8 @@ private:
     void paintById(QPainter* _painter);
 
     void updateImageAsync(QRectF _boundingRect, HistRegime _regime, qreal _current_scale,
-        qreal _minimum, qreal _maximum, qreal _range,
-        qreal _value, qreal _width, qreal _top_duration, qreal _bottom_duration, bool _bindMode,
+        qreal _minimum, qreal _maximum, qreal _range, qreal _value, qreal _width,
+        qreal _top_duration, qreal _bottom_duration, int _min_column_width, bool _bindMode,
         float _frame_time, profiler::timestamp_t _begin_time, bool _autoAdjustHist, bool _drawBorders);
 
 }; // END of class GraphicsHistogramItem.
diff --git a/profiler_gui/main_window.cpp b/profiler_gui/main_window.cpp
index 011910c..decf7b9 100644
--- a/profiler_gui/main_window.cpp
+++ b/profiler_gui/main_window.cpp
@@ -366,12 +366,12 @@ MainWindow::MainWindow() : Parent(), m_theme("default"), m_lastAddress("localhos
     connect(this, &MainWindow::activationChanged, graphicsView->threadsView(), &ThreadNamesWidget::onWindowActivationChanged, Qt::QueuedConnection);
     m_graphicsView->setWidget(graphicsView);
 
-    m_treeWidget = new DockWidget("Hierarchy", this);
+    m_treeWidget = new DockWidget("Stats", this);
     m_treeWidget->setObjectName("ProfilerGUI_Hierarchy");
     m_treeWidget->setMinimumHeight(px(50));
     m_treeWidget->setAllowedAreas(Qt::AllDockWidgetAreas);
 
-    auto treeWidget = new HierarchyWidget(this);
+    auto treeWidget = new StatsWidget(this);
     m_treeWidget->setWidget(treeWidget);
 
     m_fpsViewer = new DockWidget("FPS Monitor", this);
@@ -464,8 +464,8 @@ MainWindow::MainWindow() : Parent(), m_theme("default"), m_lastAddress("localhos
     toolbar->addAction(QIcon(imagePath("expand")), "Expand all", this, SLOT(onExpandAllClicked(bool)));
     toolbar->addAction(QIcon(imagePath("collapse")), "Collapse all", this, SLOT(onCollapseAllClicked(bool)));
 
-    action = toolbar->addAction(QIcon(imagePath("binoculars")), "See blocks hierarchy");
-    action->setToolTip("Build blocks hierarchy\nfor current visible area\nor zoom to current selected area.");
+    action = toolbar->addAction(QIcon(imagePath("binoculars")), "Build stats tree");
+    action->setToolTip("Build stats tree\nfor current visible area\nor zoom to current selected area.");
     connect(action, &QAction::triggered, [this] (bool) {
         static_cast<DiagramWidget*>(m_graphicsView->widget())->view()->inspectCurrentView(true);
     });
@@ -486,40 +486,11 @@ MainWindow::MainWindow() : Parent(), m_theme("default"), m_lastAddress("localhos
     toolButton->setPopupMode(QToolButton::InstantPopup);
     toolbar->addWidget(toolButton);
 
-    action = menu->addAction("Statistics enabled");
-    action->setCheckable(true);
-    action->setChecked(EASY_GLOBALS.enable_statistics);
-    connect(action, &QAction::triggered, this, &This::onEnableDisableStatistics);
-    if (EASY_GLOBALS.enable_statistics)
-    {
-        auto f = action->font();
-        f.setBold(true);
-        action->setFont(f);
-        action->setIcon(QIcon(imagePath("stats")));
-    }
-    else
-    {
-        action->setText("Statistics disabled");
-        action->setIcon(QIcon(imagePath("stats-off")));
-    }
 
-
-    action = menu->addAction("Only frames on histogram");
-    action->setToolTip("Display only top-level blocks on histogram.");
-    action->setCheckable(true);
-    action->setChecked(EASY_GLOBALS.display_only_frames_on_histogram);
-    connect(action, &QAction::triggered, [this](bool _checked)
-    {
-        EASY_GLOBALS.display_only_frames_on_histogram = _checked;
-        emit EASY_GLOBALS.events.displayOnlyFramesOnHistogramChanged();
-    });
-
-
-    menu->addSeparator();
-    auto submenu = menu->addMenu("View");
+    auto submenu = menu->addMenu("Diagram");
     submenu->setToolTipsVisible(true);
 
-    action = submenu->addAction("Diagram borders");
+    action = submenu->addAction("Draw borders");
     action->setToolTip("Draw borders for blocks on diagram.\nThis slightly reduces performance.");
     action->setCheckable(true);
     action->setChecked(EASY_GLOBALS.draw_graphics_items_borders);
@@ -528,57 +499,32 @@ MainWindow::MainWindow() : Parent(), m_theme("default"), m_lastAddress("localhos
         refreshDiagram();
     });
 
-    action = submenu->addAction("Histogram borders");
-    action->setToolTip("Draw borders for histogram columns.");
-    action->setCheckable(true);
-    action->setChecked(EASY_GLOBALS.draw_histogram_borders);
-    connect(action, &QAction::triggered, [this] (bool _checked) {
-        EASY_GLOBALS.draw_histogram_borders = _checked;
-        refreshHistogramImage();
-    });
-
     action = submenu->addAction("Overlap narrow children");
     action->setToolTip("Children blocks will be overlaped by narrow\nparent blocks. See also \'Blocks narrow size\'.\nThis improves performance.");
     action->setCheckable(true);
     action->setChecked(EASY_GLOBALS.hide_narrow_children);
-    connect(action, &QAction::triggered, [this](bool _checked){ EASY_GLOBALS.hide_narrow_children = _checked; refreshDiagram(); });
+    connect(action, &QAction::triggered, [this] (bool _checked) { EASY_GLOBALS.hide_narrow_children = _checked; refreshDiagram(); });
 
     action = submenu->addAction("Hide min-size blocks");
     action->setToolTip("Hides blocks which screen size\nis less than \'Min blocks size\'.");
     action->setCheckable(true);
     action->setChecked(EASY_GLOBALS.hide_minsize_blocks);
-    connect(action, &QAction::triggered, [this](bool _checked){ EASY_GLOBALS.hide_minsize_blocks = _checked; refreshDiagram(); });
-
-    action = submenu->addAction("Build hierarchy only for current thread");
-    action->setToolTip("Hierarchy tree will be built\nfor blocks from current thread only.\nThis improves performance\nand saves a lot of memory.");
-    action->setCheckable(true);
-    action->setChecked(EASY_GLOBALS.only_current_thread_hierarchy);
-    connect(action, &QAction::triggered, this, &This::onHierarchyFlagChange);
-
-    action = submenu->addAction("Add zero blocks to hierarchy");
-    action->setToolTip("Zero duration blocks will be added into hierarchy tree.\nThis reduces performance and increases memory consumption.");
-    action->setCheckable(true);
-    action->setChecked(EASY_GLOBALS.add_zero_blocks_to_hierarchy);
-    connect(action, &QAction::triggered, [this](bool _checked)
-    {
-        EASY_GLOBALS.add_zero_blocks_to_hierarchy = _checked;
-        emit EASY_GLOBALS.events.hierarchyFlagChanged(_checked);
-    });
+    connect(action, &QAction::triggered, [this] (bool _checked) { EASY_GLOBALS.hide_minsize_blocks = _checked; refreshDiagram(); });
 
     action = submenu->addAction("Enable zero duration blocks on diagram");
     action->setToolTip("If checked then allows diagram to paint zero duration blocks\nwith 1px width on each scale. Otherwise, such blocks will be resized\nto 250ns duration.");
     action->setCheckable(true);
     action->setChecked(EASY_GLOBALS.enable_zero_length);
-    connect(action, &QAction::triggered, [this](bool _checked){ EASY_GLOBALS.enable_zero_length = _checked; refreshDiagram(); });
+    connect(action, &QAction::triggered, [this] (bool _checked) { EASY_GLOBALS.enable_zero_length = _checked; refreshDiagram(); });
 
     action = submenu->addAction("Highlight similar blocks");
     action->setToolTip("Highlight all visible blocks which are similar\nto the current selected block.\nThis reduces performance.");
     action->setCheckable(true);
     action->setChecked(EASY_GLOBALS.highlight_blocks_with_same_id);
-    connect(action, &QAction::triggered, [this](bool _checked){ EASY_GLOBALS.highlight_blocks_with_same_id = _checked; refreshDiagram(); });
+    connect(action, &QAction::triggered, [this] (bool _checked) { EASY_GLOBALS.highlight_blocks_with_same_id = _checked; refreshDiagram(); });
 
     action = submenu->addAction("Collapse blocks on tree reset");
-    action->setToolTip("This collapses all blocks on diagram\nafter hierarchy tree reset.");
+    action->setToolTip("This collapses all blocks on diagram\nafter stats tree reset.");
     action->setCheckable(true);
     action->setChecked(EASY_GLOBALS.collapse_items_on_tree_close);
     connect(action, &QAction::triggered, this, &This::onCollapseItemsAfterCloseChanged);
@@ -590,73 +536,27 @@ MainWindow::MainWindow() : Parent(), m_theme("default"), m_lastAddress("localhos
     connect(action, &QAction::triggered, this, &This::onAllItemsExpandedByDefaultChange);
 
     action = submenu->addAction("Bind diagram and tree expand");
-    action->setToolTip("Expanding/collapsing blocks at diagram expands/collapses\nblocks at hierarchy tree and wise versa.");
+    action->setToolTip("Expanding/collapsing blocks at diagram expands/collapses\nblocks at stats tree and wise versa.");
     action->setCheckable(true);
     action->setChecked(EASY_GLOBALS.bind_scene_and_tree_expand_status);
     connect(action, &QAction::triggered, this, &This::onBindExpandStatusChange);
 
-    action = submenu->addAction("Hide stats for single blocks in tree");
-    action->setToolTip("If checked then such stats like Min,Max,Avg etc.\nwill not be displayed in stats tree for blocks\nwith number of calls == 1");
-    action->setCheckable(true);
-    action->setChecked(EASY_GLOBALS.display_only_relevant_stats);
-    connect(action, &QAction::triggered, this, &This::onDisplayRelevantStatsChange);
-
     action = submenu->addAction("Selecting block changes current thread");
     action->setToolTip("Automatically select thread while selecting a block.\nIf not checked then you will have to select current thread\nmanually double clicking on thread name on a diagram.");
     action->setCheckable(true);
     action->setChecked(EASY_GLOBALS.selecting_block_changes_thread);
-    connect(action, &QAction::triggered, [this](bool _checked){ EASY_GLOBALS.selecting_block_changes_thread = _checked; });
+    connect(action, &QAction::triggered, [this] (bool _checked) { EASY_GLOBALS.selecting_block_changes_thread = _checked; });
 
     action = submenu->addAction("Draw event markers");
     action->setToolTip("Display event markers under the blocks\n(even if event-blocks are not visible).\nThis slightly reduces performance.");
     action->setCheckable(true);
     action->setChecked(EASY_GLOBALS.enable_event_markers);
-    connect(action, &QAction::triggered, [this](bool _checked)
+    connect(action, &QAction::triggered, [this] (bool _checked)
     {
         EASY_GLOBALS.enable_event_markers = _checked;
         refreshDiagram();
     });
 
-    action = submenu->addAction("Automatically adjust histogram height");
-    action->setToolTip("You do not need to adjust boundaries manually,\nbut this restricts you from adjusting boundaries at all (zoom mode).\nYou can still adjust boundaries in overview mode though.");
-    action->setCheckable(true);
-    action->setChecked(EASY_GLOBALS.auto_adjust_histogram_height);
-    connect(action, &QAction::triggered, [](bool _checked)
-    {
-        EASY_GLOBALS.auto_adjust_histogram_height = _checked;
-        emit EASY_GLOBALS.events.autoAdjustHistogramChanged();
-    });
-
-    action = submenu->addAction("Automatically adjust chart height");
-    action->setToolTip("Same as similar option for histogram\nbut used for arbitrary values charts.");
-    action->setCheckable(true);
-    action->setChecked(EASY_GLOBALS.auto_adjust_chart_height);
-    connect(action, &QAction::triggered, [](bool _checked)
-    {
-        EASY_GLOBALS.auto_adjust_chart_height = _checked;
-        emit EASY_GLOBALS.events.autoAdjustChartChanged();
-    });
-
-    action = submenu->addAction("Use decorated thread names");
-    action->setToolTip("Add \'Thread\' word into thread name if there is no one already.\nExamples: \'Render\' will change to \'Render Thread\'\n\'WorkerThread\' will not change.");
-    action->setCheckable(true);
-    action->setChecked(EASY_GLOBALS.use_decorated_thread_name);
-    connect(action, &QAction::triggered, [this](bool _checked)
-    {
-        EASY_GLOBALS.use_decorated_thread_name = _checked;
-        emit EASY_GLOBALS.events.threadNameDecorationChanged();
-    });
-
-    action = submenu->addAction("Display hex thread id");
-    action->setToolTip("Display hex thread id instead of decimal.");
-    action->setCheckable(true);
-    action->setChecked(EASY_GLOBALS.hex_thread_id);
-    connect(action, &QAction::triggered, [this](bool _checked)
-    {
-        EASY_GLOBALS.hex_thread_id = _checked;
-        emit EASY_GLOBALS.events.hexThreadIdChanged();
-    });
-
     submenu->addSeparator();
     auto actionGroup = new QActionGroup(this);
     actionGroup->setExclusive(true);
@@ -735,7 +635,100 @@ MainWindow::MainWindow() : Parent(), m_theme("default"), m_lastAddress("localhos
     submenu->addAction(waction);
 
 
+    submenu = menu->addMenu("Histogram");
+    submenu->setToolTipsVisible(true);
+
+    action = submenu->addAction("Draw borders");
+    action->setToolTip("Draw borders for histogram columns.");
+    action->setCheckable(true);
+    action->setChecked(EASY_GLOBALS.draw_histogram_borders);
+    connect(action, &QAction::triggered, [this] (bool _checked) {
+        EASY_GLOBALS.draw_histogram_borders = _checked;
+        refreshHistogramImage();
+    });
+
+    action = submenu->addAction("Automatically adjust histogram height");
+    action->setToolTip("You do not need to adjust boundaries manually,\n"
+                       "but this restricts you from adjusting boundaries at all (zoom mode).\n"
+                       "You can still adjust boundaries in overview mode though.");
+    action->setCheckable(true);
+    action->setChecked(EASY_GLOBALS.auto_adjust_histogram_height);
+    connect(action, &QAction::triggered, [] (bool _checked)
+    {
+        EASY_GLOBALS.auto_adjust_histogram_height = _checked;
+        emit EASY_GLOBALS.events.autoAdjustHistogramChanged();
+    });
+
+    action = submenu->addAction("Only frames on histogram");
+    action->setToolTip("Display only top-level blocks on histogram.");
+    action->setCheckable(true);
+    action->setChecked(EASY_GLOBALS.display_only_frames_on_histogram);
+    connect(action, &QAction::triggered, [this] (bool _checked)
+    {
+        EASY_GLOBALS.display_only_frames_on_histogram = _checked;
+        emit EASY_GLOBALS.events.displayOnlyFramesOnHistogramChanged();
+    });
+
     submenu->addSeparator();
+    w = new QWidget(submenu);
+    l = new QHBoxLayout(w);
+    l->setContentsMargins(26, 1, 16, 1);
+    l->addWidget(new QLabel("Min column width, px", w), 0, Qt::AlignLeft);
+    spinbox = new QSpinBox(w);
+    spinbox->setRange(1, 400);
+    spinbox->setValue(EASY_GLOBALS.histogram_column_width_min);
+    spinbox->setFixedWidth(px(70));
+    connect(spinbox, Overload<int>::of(&QSpinBox::valueChanged), this, &This::onHistogramMinSizeChange);
+    l->addWidget(spinbox);
+    w->setLayout(l);
+    waction = new QWidgetAction(submenu);
+    waction->setDefaultWidget(w);
+    waction->setToolTip("Minimum column width when borders are enabled.");
+    submenu->addAction(waction);
+
+
+    submenu = menu->addMenu("Stats");
+    submenu->setToolTipsVisible(true);
+
+    action = submenu->addAction("Statistics enabled");
+    action->setCheckable(true);
+    action->setChecked(EASY_GLOBALS.enable_statistics);
+    connect(action, &QAction::triggered, this, &This::onEnableDisableStatistics);
+    if (EASY_GLOBALS.enable_statistics)
+    {
+        auto f = action->font();
+        f.setBold(true);
+        action->setFont(f);
+        action->setIcon(QIcon(imagePath("stats")));
+    }
+    else
+    {
+        action->setText("Statistics disabled");
+        action->setIcon(QIcon(imagePath("stats-off")));
+    }
+
+    action = submenu->addAction("Build tree only for current thread");
+    action->setToolTip("Stats tree will be built\nfor blocks from current thread only.\nThis improves performance\nand saves a lot of memory for Call-stack mode.");
+    action->setCheckable(true);
+    action->setChecked(EASY_GLOBALS.only_current_thread_hierarchy);
+    connect(action, &QAction::triggered, this, &This::onHierarchyFlagChange);
+
+    action = submenu->addAction("Add zero blocks to the tree");
+    action->setToolTip("Zero duration blocks will be added into stats tree.\nThis reduces performance and increases memory consumption.");
+    action->setCheckable(true);
+    action->setChecked(EASY_GLOBALS.add_zero_blocks_to_hierarchy);
+    connect(action, &QAction::triggered, [this](bool _checked)
+    {
+        EASY_GLOBALS.add_zero_blocks_to_hierarchy = _checked;
+        emit EASY_GLOBALS.events.hierarchyFlagChanged(_checked);
+    });
+
+    action = submenu->addAction("Hide stats for single blocks in tree");
+    action->setToolTip("If checked then such stats like Min,Max,Avg etc.\nwill not be displayed in stats tree for blocks\nwith number of calls == 1");
+    action->setCheckable(true);
+    action->setChecked(EASY_GLOBALS.hide_stats_for_single_blocks);
+    connect(action, &QAction::triggered, this, &This::onDisplayRelevantStatsChange);
+
     w = new QWidget(submenu);
     l = new QHBoxLayout(w);
     l->setContentsMargins(26, 1, 16, 1);
@@ -752,6 +745,39 @@ MainWindow::MainWindow() : Parent(), m_theme("default"), m_lastAddress("localhos
     submenu->addAction(waction);
 
 
+    submenu = menu->addMenu("General");
+    submenu->setToolTipsVisible(true);
+
+    action = submenu->addAction("Automatically adjust values chart height");
+    action->setToolTip("Automatically adjusts arbitrary values chart height\nfor currently visible region.");
+    action->setCheckable(true);
+    action->setChecked(EASY_GLOBALS.auto_adjust_chart_height);
+    connect(action, &QAction::triggered, [](bool _checked)
+    {
+        EASY_GLOBALS.auto_adjust_chart_height = _checked;
+        emit EASY_GLOBALS.events.autoAdjustChartChanged();
+    });
+
+    action = submenu->addAction("Use decorated thread names");
+    action->setToolTip("Add \'Thread\' word into thread name if there is no one already.\nExamples: \'Render\' will change to \'Render Thread\'\n\'WorkerThread\' will not change.");
+    action->setCheckable(true);
+    action->setChecked(EASY_GLOBALS.use_decorated_thread_name);
+    connect(action, &QAction::triggered, [this](bool _checked)
+    {
+        EASY_GLOBALS.use_decorated_thread_name = _checked;
+        emit EASY_GLOBALS.events.threadNameDecorationChanged();
+    });
+
+    action = submenu->addAction("Display hex thread id");
+    action->setToolTip("Display hex thread id instead of decimal.");
+    action->setCheckable(true);
+    action->setChecked(EASY_GLOBALS.hex_thread_id);
+    connect(action, &QAction::triggered, [this](bool _checked)
+    {
+        EASY_GLOBALS.hex_thread_id = _checked;
+        emit EASY_GLOBALS.events.hexThreadIdChanged();
+    });
+
 
     submenu = menu->addMenu("FPS Monitor");
     w = new QWidget(submenu);
@@ -1457,7 +1483,7 @@ void MainWindow::onBindExpandStatusChange(bool _checked)
 
 void MainWindow::onDisplayRelevantStatsChange(bool _checked)
 {
-    EASY_GLOBALS.display_only_relevant_stats = _checked;
+    EASY_GLOBALS.hide_stats_for_single_blocks = _checked;
 }
 
 void MainWindow::onHierarchyFlagChange(bool _checked)
@@ -1475,7 +1501,7 @@ void MainWindow::onExpandAllClicked(bool)
 
     emit EASY_GLOBALS.events.itemsExpandStateChanged();
 
-    auto tree = static_cast<HierarchyWidget*>(m_treeWidget->widget())->tree();
+    auto tree = static_cast<StatsWidget*>(m_treeWidget->widget())->tree();
     const QSignalBlocker b(tree);
     tree->expandAll();
 }
@@ -1487,7 +1513,7 @@ void MainWindow::onCollapseAllClicked(bool)
 
     emit EASY_GLOBALS.events.itemsExpandStateChanged();
 
-    auto tree = static_cast<HierarchyWidget*>(m_treeWidget->widget())->tree();
+    auto tree = static_cast<StatsWidget*>(m_treeWidget->widget())->tree();
     const QSignalBlocker b(tree);
     tree->collapseAll();
 }
@@ -1527,6 +1553,12 @@ void MainWindow::onMinSizeChange(int _value)
     refreshDiagram();
 }
 
+void MainWindow::onHistogramMinSizeChange(int _value)
+{
+    EASY_GLOBALS.histogram_column_width_min = _value;
+    refreshHistogramImage();
+}
+
 void MainWindow::onNarrowSizeChange(int _value)
 {
     EASY_GLOBALS.blocks_narrow_size = _value;
@@ -1733,6 +1765,10 @@ void MainWindow::loadSettings()
     if (!val.isNull())
         EASY_GLOBALS.blocks_size_min = val.toInt();
 
+    val = settings.value("histogram_column_width_min");
+    if (!val.isNull())
+        EASY_GLOBALS.histogram_column_width_min = val.toInt();
+
     val = settings.value("blocks_narrow_size");
     if (!val.isNull())
         EASY_GLOBALS.blocks_narrow_size = val.toInt();
@@ -1783,9 +1819,9 @@ void MainWindow::loadSettings()
     if (!flag.isNull())
         EASY_GLOBALS.bind_scene_and_tree_expand_status = flag.toBool();
 
-    flag = settings.value("display_only_relevant_stats");
+    flag = settings.value("hide_stats_for_single_blocks");
     if (!flag.isNull())
-        EASY_GLOBALS.display_only_relevant_stats = flag.toBool();
+        EASY_GLOBALS.hide_stats_for_single_blocks = flag.toBool();
 
     flag = settings.value("selecting_block_changes_thread");
     if (!flag.isNull())
@@ -1909,6 +1945,7 @@ void MainWindow::saveSettingsAndGeometry()
     settings.setValue("max_rows_count", EASY_GLOBALS.max_rows_count);
     settings.setValue("blocks_spacing", EASY_GLOBALS.blocks_spacing);
     settings.setValue("blocks_size_min", EASY_GLOBALS.blocks_size_min);
+    settings.setValue("histogram_column_width_min", EASY_GLOBALS.histogram_column_width_min);
     settings.setValue("blocks_narrow_size", EASY_GLOBALS.blocks_narrow_size);
     settings.setValue("draw_graphics_items_borders", EASY_GLOBALS.draw_graphics_items_borders);
     settings.setValue("draw_histogram_borders", EASY_GLOBALS.draw_histogram_borders);
@@ -1921,7 +1958,7 @@ void MainWindow::saveSettingsAndGeometry()
     settings.setValue("add_zero_blocks_to_hierarchy", EASY_GLOBALS.add_zero_blocks_to_hierarchy);
     settings.setValue("highlight_blocks_with_same_id", EASY_GLOBALS.highlight_blocks_with_same_id);
     settings.setValue("bind_scene_and_tree_expand_status", EASY_GLOBALS.bind_scene_and_tree_expand_status);
-    settings.setValue("display_only_relevant_stats", EASY_GLOBALS.display_only_relevant_stats);
+    settings.setValue("hide_stats_for_single_blocks", EASY_GLOBALS.hide_stats_for_single_blocks);
     settings.setValue("selecting_block_changes_thread", EASY_GLOBALS.selecting_block_changes_thread);
     settings.setValue("enable_event_indicators", EASY_GLOBALS.enable_event_markers);
     settings.setValue("auto_adjust_histogram_height", EASY_GLOBALS.auto_adjust_histogram_height);
diff --git a/profiler_gui/main_window.h b/profiler_gui/main_window.h
index cc12d27..f302a60 100644
--- a/profiler_gui/main_window.h
+++ b/profiler_gui/main_window.h
@@ -347,6 +347,7 @@ protected slots:
     void onMaxBlocksCountChange(int _value);
     void onSpacingChange(int _value);
     void onMinSizeChange(int _value);
+    void onHistogramMinSizeChange(int _value);
     void onNarrowSizeChange(int _value);
     void onFpsIntervalChange(int _value);
     void onFpsHistoryChange(int _value);
diff --git a/profiler_gui/themes/default.css b/profiler_gui/themes/default.css
index f46e92b..dc5c132 100644
--- a/profiler_gui/themes/default.css
+++ b/profiler_gui/themes/default.css
@@ -310,7 +310,7 @@ QMenu {
 QMenu::item {
   height: 15ex;
   padding-left: 17ex;
-  padding-right: 5ex;
+  padding-right: 10ex;
   border: 1px solid transparent;
   /* reserve space for selection border */ }
 
diff --git a/profiler_gui/themes/default.scss b/profiler_gui/themes/default.scss
index 5e3f9bb..28c9123 100644
--- a/profiler_gui/themes/default.scss
+++ b/profiler_gui/themes/default.scss
@@ -425,7 +425,7 @@ QMenu {
 QMenu::item {
     height: $InputHeight;
     padding-left: 17ex;
-    padding-right: 5ex;
+    padding-right: 10ex;
     border: 1px solid transparent; /* reserve space for selection border */
 }
 
diff --git a/profiler_gui/tree_widget_item.cpp b/profiler_gui/tree_widget_item.cpp
index 187c645..02cf606 100644
--- a/profiler_gui/tree_widget_item.cpp
+++ b/profiler_gui/tree_widget_item.cpp
@@ -272,7 +272,7 @@ QVariant TreeWidgetItem::relevantData(int _column, int _role) const
         }
     }
 
-    if (EASY_GLOBALS.display_only_relevant_stats && _role == Qt::DisplayRole)
+    if (EASY_GLOBALS.hide_stats_for_single_blocks && _role == Qt::DisplayRole)
     {
         return QVariant();
     }
diff --git a/profiler_gui/tree_widget_loader.cpp b/profiler_gui/tree_widget_loader.cpp
index b422cda..f658fa8 100644
--- a/profiler_gui/tree_widget_loader.cpp
+++ b/profiler_gui/tree_widget_loader.cpp
@@ -128,7 +128,7 @@ static void fillStatsColumns(
         item->setData(max_column, MinMaxBlockIndexRole, stats->max_duration_block);
     }
 
-    if (stats->calls_number < 2)// && EASY_GLOBALS.display_only_relevant_stats)
+    if (stats->calls_number < 2)
     {
         return;
     }