diff --git a/src/slic3r/GUI/MainFrame.cpp b/src/slic3r/GUI/MainFrame.cpp
index 1326826..3b33bbe 100644
--- a/src/slic3r/GUI/MainFrame.cpp
+++ b/src/slic3r/GUI/MainFrame.cpp
@@ -1572,7 +1572,7 @@ void MainFrame::init_menubar_as_editor()
     auto calibrationMenu = new wxMenu();
     if (m_plater)
     {
-        auto flowrateMenu   = new wxMenu();
+        auto flowrateMenu = new wxMenu();
         append_menu_item(flowrateMenu, wxID_ANY, _L("Coarse"), _L("Flow Rate Coarse"),
             [this](wxCommandEvent &) { m_plater->calib_flowrate_coarse(); },
             "", nullptr, [this]() { return m_plater->is_view3D_shown(); }, this);
@@ -1585,7 +1585,8 @@ void MainFrame::init_menubar_as_editor()
             },
             "", nullptr, [this]() { return m_plater->is_view3D_shown(); }, this);
 
-        calibrationMenu->AppendSubMenu(flowrateMenu, _L("Flow rate"));
+        //calibrationMenu->AppendSubMenu(flowrateMenu, _L("Flow rate"));
+        append_submenu(calibrationMenu, flowrateMenu, wxID_ANY, _L("Flow rate"), "");
 
         append_menu_item(calibrationMenu, wxID_ANY, _L("Pressure advance"), _L("Pressure advance"),
             [this](wxCommandEvent &) {
diff --git a/src/slic3r/GUI/calib_dlg.cpp b/src/slic3r/GUI/calib_dlg.cpp
index 22b3d18..046563b 100644
--- a/src/slic3r/GUI/calib_dlg.cpp
+++ b/src/slic3r/GUI/calib_dlg.cpp
@@ -35,7 +35,7 @@ wxBoxSizer *create_item_checkbox(wxString title, wxWindow *parent, bool *value,
 }
 
 FRF_Calibration_Dlg::FRF_Calibration_Dlg(wxWindow* parent, wxWindowID id, Plater* plater)
-    : DPIDialog(parent, id, _L("Flowrate-Fine Calibration"), wxDefaultPosition, parent->FromDIP(wxSize(-1, 280)), wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER), m_plater(plater)
+    : DPIDialog(parent, id, _L("Flowrate Fine Calibration"), wxDefaultPosition, parent->FromDIP(wxSize(-1, 280)), wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER), m_plater(plater)
 {
     wxBoxSizer* v_sizer = new wxBoxSizer(wxVERTICAL);
     SetSizer(v_sizer);
@@ -73,7 +73,7 @@ FRF_Calibration_Dlg::FRF_Calibration_Dlg(wxWindow* parent, wxWindowID id, Plater
     m_tiExtru->GetTextCtrl()->SetValidator(wxTextValidator(wxFILTER_NUMERIC));
 
     // desc
-    auto setting_desc = new wxStaticText(this, wxID_ANY, _u8L("Please note that modifying the extrusion multiplier parameter will affect different extrusion ratios.\nValid values area:0.9-1.1"),
+    auto setting_desc = new wxStaticText(this, wxID_ANY, _u8L("Please input the best value from the coarse calibration to further determine a more accurate extrusion multiplier."),
                          wxDefaultPosition, desc_size, wxALIGN_LEFT);
     setting_desc->Wrap(setting_desc->GetClientSize().x);