diff --git a/src/slic3r/GUI/DoubleSliderForLayers.cpp b/src/slic3r/GUI/DoubleSliderForLayers.cpp
index d9c3bde007..e4dc8b866a 100644
--- a/src/slic3r/GUI/DoubleSliderForLayers.cpp
+++ b/src/slic3r/GUI/DoubleSliderForLayers.cpp
@@ -647,6 +647,10 @@ void DSForLayers::Render(const int canvas_width, const int canvas_height, float
         // discard all getters dialogs
         m_show_get_jump_value = false;
     }
+    else if (m_ctrl.IsLClickOnThumb() && can_edit() &&
+             !m_ticks.has_tick(m_ctrl.GetActivePos())) {
+        add_code_as_tick(ColorChange);
+    }
 
     // draw action buttons
 
diff --git a/src/slic3r/GUI/ImGuiDoubleSlider.cpp b/src/slic3r/GUI/ImGuiDoubleSlider.cpp
index cae765852f..172d3616e1 100644
--- a/src/slic3r/GUI/ImGuiDoubleSlider.cpp
+++ b/src/slic3r/GUI/ImGuiDoubleSlider.cpp
@@ -257,6 +257,16 @@ ImRect ImGuiControl::GetActiveThumbRect() const
     return m_selection == ssLower ? m_regions.lower_thumb : m_regions.higher_thumb;
 }
 
+bool ImGuiControl::IsLClickOnThumb()
+{
+    if (m_lclick_on_selected_thumb) {
+        // discard left mouse click at list its value is checked to avoud reuse it on next frame
+        m_lclick_on_selected_thumb = false;
+        return true;
+    }
+    return false;
+}
+
 void ImGuiControl::draw_scroll_line(const ImRect& scroll_line, const ImRect& slideable_region)
 {
     if (m_cb_draw_scroll_line)
@@ -515,6 +525,17 @@ bool ImGuiControl::draw_slider( int* higher_pos, int* lower_pos,
         context.IO.MouseClicked[0])
         m_rclick_on_selected_thumb = false;
 
+    // detect left click on selected thumb
+    if (ImGui::ItemHoverable(active_thumb, id) && !pos_changed) {
+        ImVec2 active_thumb_center = active_thumb.GetCenter();
+        if (context.IO.MouseClicked[0])
+            m_active_thumb_center_on_lcklick = active_thumb_center;
+        if (context.IO.MouseReleased[0] && 
+            (m_active_thumb_center_on_lcklick.y == active_thumb_center.y) && 
+            (m_active_thumb_center_on_lcklick.x == active_thumb_center.x)     )
+            m_lclick_on_selected_thumb = true;
+    }
+
     // render slider
 
     ImVec2 higher_thumb_center = m_regions.higher_thumb.GetCenter();
diff --git a/src/slic3r/GUI/ImGuiDoubleSlider.hpp b/src/slic3r/GUI/ImGuiDoubleSlider.hpp
index 8530f08188..058dbc9c80 100644
--- a/src/slic3r/GUI/ImGuiDoubleSlider.hpp
+++ b/src/slic3r/GUI/ImGuiDoubleSlider.hpp
@@ -84,6 +84,7 @@ public:
     ImRect  GetActiveThumbRect() const;
 
     bool    IsRClickOnThumb() const     { return m_rclick_on_selected_thumb; }
+    bool    IsLClickOnThumb();
 
     bool    is_horizontal() const       { return !(m_flags & ImGuiSliderFlags_Vertical); }
     bool    render();
@@ -138,6 +139,8 @@ private:
     int             m_mouse_pos;
 
     bool            m_rclick_on_selected_thumb{ false };
+    bool            m_lclick_on_selected_thumb{ false };
+    ImVec2          m_active_thumb_center_on_lcklick;
 
     bool            m_draw_lower_thumb{ true };
     bool            m_combine_thumbs  { false };
diff --git a/src/slic3r/GUI/TickCodesManager.hpp b/src/slic3r/GUI/TickCodesManager.hpp
index d36dae989a..5c055472b7 100644
--- a/src/slic3r/GUI/TickCodesManager.hpp
+++ b/src/slic3r/GUI/TickCodesManager.hpp
@@ -113,7 +113,6 @@ class TickCodeManager
     ExtrudersSequence           m_extruders_sequence;
 
     bool            has_tick_with_code(Type type);
-    bool            has_tick(int tick);
 
     std::string     get_color_for_tick(TickCode tick, Type type, const int extruder);
 
@@ -149,6 +148,7 @@ public:
 
     void set_ticks(const Info& custom_gcode_per_print_z);
 
+    bool has_tick(int tick);
     bool add_tick(const int tick, Type type, int extruder, double print_z);
     bool edit_tick(std::set<TickCode>::iterator it, double print_z);
     void switch_code(Type type_from, Type type_to);