hide bed type for 3rd party printer

src/slic3r/GUI/Widgets/ComboBox.cpp

@@ -73,6 +73,12 @@ void ComboBox::SetSelection(int n)
         SetIcon(icons[drop.selection]);
 }
 
+void ComboBox::SelectAndNotify(int n) { 
+    SetSelection(n);
+    sendComboBoxEvent();
+}
+
+
 void ComboBox::Rescale()
 {
     TextInput::Rescale();

src/slic3r/GUI/Widgets/ComboBox.hpp

@@ -43,6 +43,8 @@ public:
 
     void SetSelection(int n) override;
 
+    void SelectAndNotify(int n);
+
     virtual void Rescale() override;
 
     wxString GetValue() const;