Add delete buttons

gui/utils/helpers_wxPython.py

@@ -0,0 +1,8 @@
+import wx
+
+
+def YesNoDialog(question=u'Are you sure you want to do this?', caption=u'Yes or no?'):
+    dlg = wx.MessageDialog(None, question, caption, wx.YES_NO | wx.ICON_QUESTION)
+    result = dlg.ShowModal() == wx.ID_YES
+    dlg.Destroy()
+    return result