diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index 8bb921406..709597cba 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -803,8 +803,7 @@ void GCode::do_export(Print *print, const char *path, GCodePreviewData *preview_
     // starts analyzer calculations
     if (m_enable_analyzer) {
         BOOST_LOG_TRIVIAL(debug) << "Preparing G-code preview data" << log_memory_info();
-        GCodeTimeEstimator* time_estimator = &m_normal_time_estimator;
-        m_analyzer.calc_gcode_preview_data(*preview_data, *time_estimator, [print]() { print->throw_if_canceled(); });
+        m_analyzer.calc_gcode_preview_data(*preview_data, m_normal_time_estimator, [print]() { print->throw_if_canceled(); });
         m_analyzer.reset();
     }
 
@@ -2504,7 +2503,7 @@ void GCode::process_layer(
             //switch to mill
             gcode += "; milling ok\n";
             uint32_t current_extruder_filament = m_writer.tool()->id();
-            uint32_t milling_extruder_id = config().nozzle_diameter.values.size();
+            uint32_t milling_extruder_id = uint32_t(config().nozzle_diameter.values.size());
             gcode += "; toolchange:\n";
             gcode += m_writer.toolchange(milling_extruder_id);
             gcode += "; toolchange done\n";
diff --git a/src/libslic3r/GCode/Analyzer.cpp b/src/libslic3r/GCode/Analyzer.cpp
index c7e33e82c..431bcdacc 100644
--- a/src/libslic3r/GCode/Analyzer.cpp
+++ b/src/libslic3r/GCode/Analyzer.cpp
@@ -22,7 +22,8 @@ static const unsigned int DEFAULT_COLOR_PRINT_ID = 0;
 static const Slic3r::Vec3d DEFAULT_START_POSITION = Slic3r::Vec3d(0.0f, 0.0f, 0.0f);
 static const float DEFAULT_START_EXTRUSION = 0.0f;
 static const float DEFAULT_FAN_SPEED = 0.0f;
-static const float DEFAULT_LAYER_TIME = 0.0f;
+static const float DEFAULT_LAYER_DURATION = 0.0f;
+static const float DEFAULT_LAYER_ELAPSED_TIME = 0.0f;
 
 namespace Slic3r {
 
@@ -47,12 +48,13 @@ GCodeAnalyzer::Metadata::Metadata()
     , height(GCodeAnalyzer::Default_Height)
     , feedrate(DEFAULT_FEEDRATE)
     , fan_speed(DEFAULT_FAN_SPEED)
-    , layer_time(DEFAULT_LAYER_TIME)
+    , layer_duration(DEFAULT_LAYER_DURATION)
+    , layer_elapsed_time(DEFAULT_LAYER_ELAPSED_TIME)
     , cp_color_id(DEFAULT_COLOR_PRINT_ID)
 {
 }
 
-GCodeAnalyzer::Metadata::Metadata(ExtrusionRole extrusion_role, unsigned int extruder_id, double mm3_per_mm, float width, float height, float feedrate, float fan_speed, float layer_time, unsigned int cp_color_id/* = 0*/)
+GCodeAnalyzer::Metadata::Metadata(ExtrusionRole extrusion_role, unsigned int extruder_id, double mm3_per_mm, float width, float height, float feedrate, float fan_speed, float layer_duration, float layer_elapsed_time, unsigned int cp_color_id)
     : extrusion_role(extrusion_role)
     , extruder_id(extruder_id)
     , mm3_per_mm(mm3_per_mm)
@@ -60,7 +62,8 @@ GCodeAnalyzer::Metadata::Metadata(ExtrusionRole extrusion_role, unsigned int ext
     , height(height)
     , feedrate(feedrate)
     , fan_speed(fan_speed)
-    , layer_time(layer_time)
+    , layer_duration(layer_duration)
+    , layer_elapsed_time(layer_elapsed_time)
     , cp_color_id(cp_color_id)
 {
 }
@@ -88,7 +91,7 @@ bool GCodeAnalyzer::Metadata::operator != (const GCodeAnalyzer::Metadata& other)
     if (fan_speed != other.fan_speed)
         return true;
 
-    if (layer_time != other.layer_time)
+    if (layer_duration != other.layer_duration)
         return true;
 
     if (cp_color_id != other.cp_color_id)
@@ -97,9 +100,11 @@ bool GCodeAnalyzer::Metadata::operator != (const GCodeAnalyzer::Metadata& other)
     return false;
 }
 
-GCodeAnalyzer::GCodeMove::GCodeMove(GCodeMove::EType type, ExtrusionRole extrusion_role, unsigned int extruder_id, double mm3_per_mm, float width, float height, float feedrate, const Vec3d& start_position, const Vec3d& end_position, float delta_extruder, float fan_speed, float layer_time, unsigned int cp_color_id/* = 0*/)
+GCodeAnalyzer::GCodeMove::GCodeMove(GCodeMove::EType type, ExtrusionRole extrusion_role, unsigned int extruder_id, double mm3_per_mm, 
+    float width, float height, float feedrate, const Vec3d& start_position, const Vec3d& end_position, float delta_extruder, 
+    float fan_speed, float layer_duration, float layer_elapsed_time, unsigned int cp_color_id)
     : type(type)
-    , data(extrusion_role, extruder_id, mm3_per_mm, width, height, feedrate, fan_speed, layer_time, cp_color_id)
+    , data(extrusion_role, extruder_id, mm3_per_mm, width, height, feedrate, fan_speed, layer_duration, layer_elapsed_time, cp_color_id)
     , start_position(start_position)
     , end_position(end_position)
     , delta_extruder(delta_extruder)
@@ -137,7 +142,7 @@ void GCodeAnalyzer::reset()
     _set_start_position(DEFAULT_START_POSITION);
     _set_start_extrusion(DEFAULT_START_EXTRUSION);
     _set_fan_speed(DEFAULT_FAN_SPEED);
-    _set_layer_time(DEFAULT_LAYER_TIME);
+    _set_layer_duration(DEFAULT_LAYER_DURATION);
     _reset_axes_position();
     _reset_axes_origin();
     _reset_cached_position();
@@ -855,14 +860,14 @@ float GCodeAnalyzer::_get_fan_speed() const
     return m_state.data.fan_speed;
 }
 
-void GCodeAnalyzer::_set_layer_time(float layer_time_sec)
+void GCodeAnalyzer::_set_layer_duration(float layer_duration_sec)
 {
-    m_state.data.layer_time = layer_time_sec;
+    m_state.data.layer_duration = layer_duration_sec;
 }
 
-float GCodeAnalyzer::_get_layer_time() const
+float GCodeAnalyzer::_get_layer_duration() const
 {
-    return m_state.data.layer_time;
+    return m_state.data.layer_duration;
 }
 
 void GCodeAnalyzer::_set_axis_position(EAxis axis, float position)
@@ -952,7 +957,9 @@ void GCodeAnalyzer::_store_move(GCodeAnalyzer::GCodeMove::EType type)
 
     Vec3d start_position = _get_start_position() + extruder_offset;
     Vec3d end_position = _get_end_position() + extruder_offset;
-    it->second.emplace_back(type, _get_extrusion_role(), extruder_id, _get_mm3_per_mm(), _get_width(), _get_height(), _get_feedrate(), start_position, end_position, _get_delta_extrusion(), _get_fan_speed(), _get_layer_time(), _get_cp_color_id());
+    it->second.emplace_back(type, _get_extrusion_role(), extruder_id, _get_mm3_per_mm(), 
+        _get_width(), _get_height(), _get_feedrate(), start_position, end_position, _get_delta_extrusion(), 
+        _get_fan_speed(), _get_layer_duration(), m_state.data.layer_elapsed_time, _get_cp_color_id());
 }
 
 bool GCodeAnalyzer::_is_valid_extrusion_role(int value) const
@@ -996,7 +1003,8 @@ void GCodeAnalyzer::_calc_gcode_preview_extrusion_layers(GCodePreviewData& previ
                 path.extruder_id = data.extruder_id;
                 path.cp_color_id = data.cp_color_id;
                 path.fan_speed = data.fan_speed;
-                path.layer_time = data.layer_time;
+                path.layer_duration = data.layer_duration;
+                path.elapsed_time = data.layer_elapsed_time;
             }
         }
     };
@@ -1015,18 +1023,19 @@ void GCodeAnalyzer::_calc_gcode_preview_extrusion_layers(GCodePreviewData& previ
     GCodePreviewData::MultiRange<GCodePreviewData::FeedrateKind> feedrate_range;
     GCodePreviewData::Range volumetric_rate_range;
     GCodePreviewData::Range fan_speed_range;
-    GCodePreviewData::Range layer_time_range;
+    GCodePreviewData::Range layer_duration_range;
+    GCodePreviewData::Range elapsed_time_range;
 
     // to avoid to call the callback too often
     unsigned int cancel_callback_threshold = (unsigned int)std::max((int)extrude_moves->second.size() / 25, 1);
     unsigned int cancel_callback_curr = 0;
 
-    time_estimator.calculate_layer_time();
+    time_estimator.calculate_layer_duration();
     for (GCodeMove& move : extrude_moves->second)
     {
         z = (float)move.start_position.z();
-        float layer_timet = time_estimator.get_layer_time(z);
-        move.data.layer_time = layer_timet;
+        move.data.layer_duration = time_estimator.get_layer_duration(z);
+        move.data.layer_elapsed_time += time_estimator.get_layer_time(z);
     }
     time_estimator.reset_layers();
 
@@ -1060,7 +1069,8 @@ void GCodeAnalyzer::_calc_gcode_preview_extrusion_layers(GCodePreviewData& previ
             feedrate_range.update_from(move.data.feedrate, GCodePreviewData::FeedrateKind::EXTRUSION);
             volumetric_rate_range.update_from(volumetric_rate);
             fan_speed_range.update_from(move.data.fan_speed);
-            layer_time_range.update_from(move.data.layer_time);
+            layer_duration_range.update_from(move.data.layer_duration);
+            elapsed_time_range.update_from(move.data.layer_elapsed_time);
         }
         else
             // append end vertex of the move to current polyline
@@ -1080,7 +1090,8 @@ void GCodeAnalyzer::_calc_gcode_preview_extrusion_layers(GCodePreviewData& previ
     preview_data.ranges.feedrate.update_from(feedrate_range);
     preview_data.ranges.volumetric_rate.update_from(volumetric_rate_range);
     preview_data.ranges.fan_speed.update_from(fan_speed_range);
-    preview_data.ranges.layer_time.update_from(layer_time_range);
+    preview_data.ranges.layer_duration.update_from(layer_duration_range);
+    preview_data.ranges.elapsed_time.update_from(elapsed_time_range);
 
     // we need to sort the layers by their z as they can be shuffled in case of sequential prints
     std::sort(preview_data.extrusion.layers.begin(), preview_data.extrusion.layers.end(), [](const GCodePreviewData::Extrusion::Layer& l1, const GCodePreviewData::Extrusion::Layer& l2)->bool { return l1.z < l2.z; });
diff --git a/src/libslic3r/GCode/Analyzer.hpp b/src/libslic3r/GCode/Analyzer.hpp
index 08cf312cc..54fede8b9 100644
--- a/src/libslic3r/GCode/Analyzer.hpp
+++ b/src/libslic3r/GCode/Analyzer.hpp
@@ -60,11 +60,13 @@ public:
         float height;    // mm
         float feedrate;  // mm/s
         float fan_speed; // percentage
-        float layer_time; //s
+        float layer_duration; //s
+        float layer_elapsed_time; //s
         unsigned int cp_color_id;
 
         Metadata();
-        Metadata(ExtrusionRole extrusion_role, unsigned int extruder_id, double mm3_per_mm, float width, float height, float feedrate, float fan_speed, float layer_time, unsigned int cp_color_id = 0);
+        Metadata(ExtrusionRole extrusion_role, unsigned int extruder_id, double mm3_per_mm,
+            float width, float height, float feedrate, float fan_speed, float layer_duration, float layer_elapsed_time, unsigned int cp_color_id);
 
         bool operator != (const Metadata& other) const;
     };
@@ -88,7 +90,9 @@ public:
         Vec3d end_position;
         float delta_extruder;
 
-        GCodeMove(EType type, ExtrusionRole extrusion_role, unsigned int extruder_id, double mm3_per_mm, float width, float height, float feedrate, const Vec3d& start_position, const Vec3d& end_position, float delta_extruder, float fan_speed, float layer_time, unsigned int cp_color_id = 0);
+        GCodeMove(EType type, ExtrusionRole extrusion_role, unsigned int extruder_id, double mm3_per_mm,
+            float width, float height, float feedrate, const Vec3d& start_position, const Vec3d& end_position, float delta_extruder,
+            float fan_speed, float layer_duration, float layer_elapsed_time, unsigned int cp_color_id);
         GCodeMove(EType type, const Metadata& data, const Vec3d& start_position, const Vec3d& end_position, float delta_extruder);
     };
 
@@ -264,8 +268,8 @@ private:
     void _set_fan_speed(float fan_speed_percentage);
     float _get_fan_speed() const;
 
-    void _set_layer_time(float layer_time_sec);
-    float _get_layer_time() const;
+    void _set_layer_duration(float layer_duration_sec);
+    float _get_layer_duration() const;
 
     void _set_axis_position(EAxis axis, float position);
     float _get_axis_position(EAxis axis) const;
diff --git a/src/libslic3r/GCode/PreviewData.cpp b/src/libslic3r/GCode/PreviewData.cpp
index 678fe03a1..4298219f8 100644
--- a/src/libslic3r/GCode/PreviewData.cpp
+++ b/src/libslic3r/GCode/PreviewData.cpp
@@ -263,7 +263,8 @@ void GCodePreviewData::reset()
     ranges.fan_speed.reset();
     ranges.volumetric_rate.reset();
     ranges.fan_speed.reset();
-    ranges.layer_time.reset();
+    ranges.layer_duration.reset();
+    ranges.elapsed_time.reset();
     extrusion.layers.clear();
     travel.polylines.clear();
     retraction.positions.clear();
@@ -300,14 +301,19 @@ Color GCodePreviewData::get_fan_speed_color(float fan_speed) const
     return ranges.fan_speed.get_color_at(fan_speed);
 }
 
-Color GCodePreviewData::get_layer_time_color(float layer_time) const
+Color GCodePreviewData::get_layer_duration_color(float layer_time) const
 {
-    return ranges.layer_time.get_color_at(layer_time);
+    return ranges.layer_duration.get_color_at(layer_time);
 }
 
-Color GCodePreviewData::get_layer_time_log_color(float layer_time) const
+Color GCodePreviewData::get_layer_duration_log_color(float layer_time) const
 {
-    return ranges.layer_time.get_color_at(layer_time, true);
+    return ranges.layer_duration.get_color_at(layer_time, true);
+}
+
+Color GCodePreviewData::get_elapsed_time_color(float elapsed_time) const
+{
+    return ranges.elapsed_time.get_color_at(elapsed_time);
 }
 
 Color GCodePreviewData::get_volumetric_rate_color(float rate) const
@@ -497,12 +503,17 @@ GCodePreviewData::LegendItemsList GCodePreviewData::get_legend_items(const std::
         }
     case Extrusion::LayerTime:
     {
-        Helper::FillListFromRange(items, ranges.layer_time, 1, 1.0f, true);
+        Helper::FillListFromRange(items, ranges.layer_duration, 1, 1.0f, true);
         break;
     }
     case Extrusion::LayerTimeLog:
     {
-        Helper::FillListFromRange(items, ranges.layer_time, 1, 1.0f, true, true);
+        Helper::FillListFromRange(items, ranges.layer_duration, 1, 1.0f, true, true);
+        break;
+    }
+    case Extrusion::Chronology:
+    {
+        Helper::FillListFromRange(items, ranges.elapsed_time, 1, 1.0f, true);
         break;
     }
     case Extrusion::VolumetricRate:
diff --git a/src/libslic3r/GCode/PreviewData.hpp b/src/libslic3r/GCode/PreviewData.hpp
index f2f8f3a36..c97229f55 100644
--- a/src/libslic3r/GCode/PreviewData.hpp
+++ b/src/libslic3r/GCode/PreviewData.hpp
@@ -202,7 +202,9 @@ public:
         // Color mapping by fan speed.
         Range fan_speed;
         // Color mapping by layer time.
-        Range layer_time;
+        Range layer_duration;
+        // Color mapping by time.
+        Range elapsed_time;
         // Color mapping by volumetric extrusion rate.
         Range volumetric_rate;
     };
@@ -228,6 +230,7 @@ public:
             FanSpeed,
             LayerTime,
             LayerTimeLog,
+            Chronology,
             VolumetricRate,
             Tool,
             Filament,
@@ -259,7 +262,9 @@ public:
 		    // Fan speed for the extrusion, used for visualization purposes.
 		    float 			fan_speed;
             // Layer time for the extrusion, used for visualization purposes.
-            float 			layer_time;
+            float 			layer_duration;
+            // time since print start, used for visualization purposes.
+            float 			elapsed_time;
         };
 		using Paths = std::vector<Path>;
 
@@ -385,8 +390,9 @@ public:
     Color get_width_color(float width) const;
     Color get_feedrate_color(float feedrate) const;
     Color get_fan_speed_color(float fan_speed) const;
-    Color get_layer_time_color(float layer_time) const;
-    Color get_layer_time_log_color(float layer_time) const;
+    Color get_layer_duration_color(float layer_time) const;
+    Color get_layer_duration_log_color(float layer_time) const;
+    Color get_elapsed_time_color(float elapsed_time) const;
     Color get_volumetric_rate_color(float rate) const;
 
     void set_extrusion_role_color(const std::string& role_name, float red, float green, float blue, float alpha);
diff --git a/src/libslic3r/GCodeTimeEstimator.cpp b/src/libslic3r/GCodeTimeEstimator.cpp
index 17ba4abc1..928146238 100644
--- a/src/libslic3r/GCodeTimeEstimator.cpp
+++ b/src/libslic3r/GCodeTimeEstimator.cpp
@@ -854,7 +854,7 @@ namespace Slic3r {
             block_time += block.deceleration_time();
             m_time += block_time;
             block.elapsed_time = m_time;
-            block.time = block_time;
+            block.duration = block_time;
 
 #if ENABLE_MOVE_STATS
             MovesStatsMap::iterator it = _moves_stats.find(block.move_type);
@@ -1032,7 +1032,6 @@ namespace Slic3r {
 
         // updates axes positions from line
         float new_pos[Num_Axis];
-        long raw_axis_absolute_position;
         for (unsigned char a = X; a < Num_Axis; ++a)
         {
             new_pos[a] = axis_absolute_position((EAxis)a, line);
@@ -1696,7 +1695,7 @@ namespace Slic3r {
         m_layers.clear();
     }
 
-    void GCodeTimeEstimator::calculate_layer_time()
+    void GCodeTimeEstimator::calculate_layer_duration()
     {
         for (int i = 0; i < (int)m_blocks.size(); ++i)
         {
@@ -1707,30 +1706,43 @@ namespace Slic3r {
                 while (j < (int)m_layers.size())
                 {
                     if (m_blocks[i].z == m_layers[j].z) {
-                        m_layers[j].time += m_blocks[i].time;
+                        m_layers[j].duration += m_blocks[i].duration;
+                        m_layers[j].min_time = std::min(m_layers[j].min_time, m_blocks[i].elapsed_time);
                         layer_found = true;
                     }
                     j++;
                 }
                 if (!layer_found) {
-                    m_layers.push_back({ m_blocks[i].z, m_blocks[i].time });
+                    m_layers.emplace_back( m_blocks[i].z, m_blocks[i].duration, m_blocks[i].elapsed_time );
                 }
             }
         }
+        std::sort(m_layers.begin(), m_layers.end(), [](const Layer& e1, const Layer& e2){return e1.z < e2.z; });
+    }
+
+    float GCodeTimeEstimator::get_layer_duration(float z)
+    {
+        for (const Layer &layer : m_layers)
+        {
+            if (z <= layer.z + EPSILON) {
+                return layer.duration;
+            }
+        }
+        return 0;
     }
 
     float GCodeTimeEstimator::get_layer_time(float z)
     {
-        int j = 0;
-        while (j < (int)m_layers.size())
+        float time = 0;
+        for (const Layer& layer : m_layers)
         {
-            if (z == m_layers[j].z) {
-                return m_layers[j].time;
+            if (z <= layer.z + EPSILON) {
+                return time;
             }
-            j++;
+            time += layer.duration;
         }
         return 0;
-     }
+    }
 
 #if ENABLE_MOVE_STATS
     void GCodeTimeEstimator::_log_moves_stats() const
diff --git a/src/libslic3r/GCodeTimeEstimator.hpp b/src/libslic3r/GCodeTimeEstimator.hpp
index feaf3fbee..d9facd7cb 100644
--- a/src/libslic3r/GCodeTimeEstimator.hpp
+++ b/src/libslic3r/GCodeTimeEstimator.hpp
@@ -162,7 +162,7 @@ namespace Slic3r {
             FeedrateProfile feedrate;
             Trapezoid trapezoid;
             float elapsed_time;
-            float time;
+            float duration;
 
             Block();
 
@@ -209,7 +209,12 @@ namespace Slic3r {
         struct Layer
         {
             float z;
-            float time;
+            float duration;
+            float min_time;
+
+            Layer(float z, float duration, float min_time)
+                : z(z), duration(duration), min_time(min_time)
+            {}
         };
 
         typedef std::vector<Layer> LayersList;
@@ -365,7 +370,9 @@ namespace Slic3r {
         void set_additional_time(float timeSec);
         float get_additional_time() const;
 
-        void calculate_layer_time();
+        //function for layer duration
+        void calculate_layer_duration();
+        float get_layer_duration(float z);
         float get_layer_time(float z);
         void reset_layers();
 
diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index 9985577cc..73ecd8699 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -6206,9 +6206,11 @@ void GLCanvas3D::_load_gcode_extrusion_paths(const GCodePreviewData& preview_dat
             case GCodePreviewData::Extrusion::FanSpeed:
                 return path.fan_speed;
             case GCodePreviewData::Extrusion::LayerTime:
-                return path.layer_time;
+                return path.layer_duration;
             case GCodePreviewData::Extrusion::LayerTimeLog:
-                return path.layer_time;
+                return path.layer_duration;
+            case GCodePreviewData::Extrusion::Chronology:
+                return path.elapsed_time;
             case GCodePreviewData::Extrusion::VolumetricRate:
                 return path.feedrate * (float)path.mm3_per_mm;
             case GCodePreviewData::Extrusion::Tool:
@@ -6238,9 +6240,11 @@ void GLCanvas3D::_load_gcode_extrusion_paths(const GCodePreviewData& preview_dat
             case GCodePreviewData::Extrusion::FanSpeed:
                 return data.get_fan_speed_color(value);
             case GCodePreviewData::Extrusion::LayerTime:
-                return data.get_layer_time_color(value);
+                return data.get_layer_duration_color(value);
             case GCodePreviewData::Extrusion::LayerTimeLog:
-                return data.get_layer_time_log_color(value);
+                return data.get_layer_duration_log_color(value);
+            case GCodePreviewData::Extrusion::Chronology:
+                return data.get_elapsed_time_color(value);
             case GCodePreviewData::Extrusion::VolumetricRate:
                 return data.get_volumetric_rate_color(value);
             case GCodePreviewData::Extrusion::Tool:
diff --git a/src/slic3r/GUI/GUI_Preview.cpp b/src/slic3r/GUI/GUI_Preview.cpp
index 0054a5959..a58f95177 100644
--- a/src/slic3r/GUI/GUI_Preview.cpp
+++ b/src/slic3r/GUI/GUI_Preview.cpp
@@ -242,7 +242,9 @@ bool Preview::init(wxWindow* parent, Bed3D& bed, Camera& camera, GLToolbar& view
     m_choice_view_type->Append(_(L("Width")));
     m_choice_view_type->Append(_(L("Speed")));
     m_choice_view_type->Append(_(L(width_screen == tiny ? "Fan" : "Fan speed")));
-    m_choice_view_type->Append(_(L(width_screen == tiny ?"time":"Layer time")));
+    m_choice_view_type->Append(_(L(width_screen == tiny ? "time" : "Layer time")));
+    m_choice_view_type->Append(_(L(width_screen == tiny ? "Log time" : "Layer time (log)")));
+    m_choice_view_type->Append(_(L(width_screen == tiny ? "Chrono" : "Chronology")));
     m_choice_view_type->Append(_(L(width_screen == tiny ? "Vol. flow" :"Volumetric flow rate")));
     m_choice_view_type->Append(_(L("Tool")));
     m_choice_view_type->Append(_(L("Filament")));