diff --git a/xs/src/libslic3r/GCode/WipeTowerPrusaMM.cpp b/xs/src/libslic3r/GCode/WipeTowerPrusaMM.cpp
index 7c8181ff6..0c8f4fe9f 100644
--- a/xs/src/libslic3r/GCode/WipeTowerPrusaMM.cpp
+++ b/xs/src/libslic3r/GCode/WipeTowerPrusaMM.cpp
@@ -800,7 +800,7 @@ void WipeTowerPrusaMM::toolchange_Unload(
 	const float start_x = writer.x();
 	turning_point = ( xr-start_x > start_x-xl ? xr : xl );
 	const float max_x_dist = 2*std::abs(start_x-turning_point);
-	const unsigned int N = 4 + std::max(0,(m_filpar[m_current_tool].cooling_time-14)/3);
+	const unsigned int N = 4 + std::max(0.f, (m_filpar[m_current_tool].cooling_time-14)/3);
 	float time = m_filpar[m_current_tool].cooling_time / float(N);
 
 	i = 0;
diff --git a/xs/src/libslic3r/GCode/WipeTowerPrusaMM.hpp b/xs/src/libslic3r/GCode/WipeTowerPrusaMM.hpp
index 4f97f700f..636b4b738 100644
--- a/xs/src/libslic3r/GCode/WipeTowerPrusaMM.hpp
+++ b/xs/src/libslic3r/GCode/WipeTowerPrusaMM.hpp
@@ -67,7 +67,7 @@ public:
 
 	// Set the extruder properties.
 	void set_extruder(size_t idx, material_type material, int temp, int first_layer_temp, float loading_speed,
-                      float unloading_speed, float delay, int cooling_time, std::string ramming_parameters)
+                      float unloading_speed, float delay, float cooling_time, std::string ramming_parameters)
 	{
         //while (m_filpar.size() < idx+1)   // makes sure the required element is in the vector
         m_filpar.push_back(FilamentParameters());
@@ -205,7 +205,7 @@ private:
         float               loading_speed = 0.f;
         float               unloading_speed = 0.f;
         float               delay = 0.f ;
-        int                 cooling_time = 0;
+        float               cooling_time = 0.f;
         float               ramming_line_width_multiplicator = 0.f;
         float               ramming_step_multiplicator = 0.f;
         std::vector<float>  ramming_speed;
diff --git a/xs/src/libslic3r/PrintConfig.cpp b/xs/src/libslic3r/PrintConfig.cpp
index cb5bcea4a..aef9a8fa2 100644
--- a/xs/src/libslic3r/PrintConfig.cpp
+++ b/xs/src/libslic3r/PrintConfig.cpp
@@ -470,14 +470,14 @@ PrintConfigDef::PrintConfigDef()
     def->min = 0;
     def->default_value = new ConfigOptionFloats { 0. };
     
-    def = this->add("filament_cooling_time", coInts);
+    def = this->add("filament_cooling_time", coFloats);
     def->label = L("Cooling time");
     def->tooltip = L("The filament is slowly moved back and forth after retraction into the cooling tube "
                    "for this amount of time.");
     def->cli = "filament_cooling_time=i@";
     def->sidetext = L("s");
     def->min = 0;
-    def->default_value = new ConfigOptionInts { 14 };
+    def->default_value = new ConfigOptionFloats { 14.f };
 
     def = this->add("filament_ramming_parameters", coStrings);
     def->label = L("Ramming parameters");
@@ -1779,7 +1779,7 @@ PrintConfigDef::PrintConfigDef()
     def->default_value = new ConfigOptionBool(false);
 
     def = this->add("wiping_volumes_extruders", coFloats);
-    def->label = L("Extrusion multiplier");
+    def->label = L("Purging volumes - load/unload volumes");
     def->tooltip = L("This vector saves required volumes to change from/to each tool used on the "
                      "wipe tower. These values are used to simplify creation of the full purging "
                      "volumes below. ");
@@ -1787,7 +1787,7 @@ PrintConfigDef::PrintConfigDef()
     def->default_value = new ConfigOptionFloats { 50.f, 50.f, 50.f, 50.f, 50.f, 50.f, 50.f, 50.f, 50.f, 50.f  };
 
     def = this->add("wiping_volumes_matrix", coFloats);
-    def->label = L("Extrusion multiplier");
+    def->label = L("Purging volumes - matrix");
     def->tooltip = L("This matrix describes volumes (in cubic milimetres) required to purge the"
                      " new filament on the wipe tower for any given pair of tools. ");
     def->cli = "wiping-volumes-matrix=f@";
diff --git a/xs/src/libslic3r/PrintConfig.hpp b/xs/src/libslic3r/PrintConfig.hpp
index d184a2161..be64d35bd 100644
--- a/xs/src/libslic3r/PrintConfig.hpp
+++ b/xs/src/libslic3r/PrintConfig.hpp
@@ -469,7 +469,7 @@ public:
     ConfigOptionFloats              filament_loading_speed;
     ConfigOptionFloats              filament_unloading_speed;
     ConfigOptionFloats              filament_toolchange_delay;
-    ConfigOptionInts                filament_cooling_time;
+    ConfigOptionFloats              filament_cooling_time;
     ConfigOptionStrings             filament_ramming_parameters;
     ConfigOptionBool                gcode_comments;
     ConfigOptionEnum<GCodeFlavor>   gcode_flavor;
diff --git a/xs/src/slic3r/GUI/Tab.cpp b/xs/src/slic3r/GUI/Tab.cpp
index 267e579b6..82d4c456d 100644
--- a/xs/src/slic3r/GUI/Tab.cpp
+++ b/xs/src/slic3r/GUI/Tab.cpp
@@ -521,7 +521,7 @@ void TabPrint::build()
         optgroup->append_single_option_line("wipe_tower_bridging");
         line = { _(L("Advanced")), "" };
         line.widget = [this](wxWindow* parent){
-			m_wipe_tower_btn = new wxButton(parent, wxID_ANY, _(L("Advanced settings"))+"\u2026", wxDefaultPosition, wxDefaultSize, wxBU_LEFT | wxBU_EXACTFIT);
+			m_wipe_tower_btn = new wxButton(parent, wxID_ANY, _(L("Purging volumes"))+"\u2026", wxDefaultPosition, wxDefaultSize, wxBU_LEFT | wxBU_EXACTFIT);
 			auto sizer = new wxBoxSizer(wxHORIZONTAL);
 			sizer->Add(m_wipe_tower_btn);
 			m_wipe_tower_btn->Bind(wxEVT_BUTTON, ([this](wxCommandEvent& e)
@@ -958,10 +958,8 @@ void TabFilament::build()
             ramming_dialog_btn->Bind(wxEVT_BUTTON, ([this](wxCommandEvent& e)
 			{
                 RammingDialog dlg(this,(m_config->option<ConfigOptionStrings>("filament_ramming_parameters"))->get_at(0));
-                if (dlg.ShowModal() == wxID_OK) {
-                    wxMessageBox("DIALOG OK:\n"+dlg.get_parameters());
-                    //load_key_value("wipe_tower_advanced", dlg.get_parameters());
-                }
+                if (dlg.ShowModal() == wxID_OK)
+                    (m_config->option<ConfigOptionStrings>("filament_ramming_parameters"))->get_at(0) = dlg.get_parameters();
 			}));
 			return sizer;
 		};