diff -r b112bfdde5cc -r 5b6ad7a7fd9d controls/PouInstanceVariablesPanel.py
--- a/controls/PouInstanceVariablesPanel.py	Sat Aug 19 21:06:54 2017 +0300
+++ b/controls/PouInstanceVariablesPanel.py	Mon Aug 21 21:55:18 2017 +0300
@@ -370,8 +370,8 @@
         event.x = size.width / 2
         event.y = size.height / 2
         event.SetEventObject(self.InstanceChoice)
-        #event = wx.KeyEvent(wx.EVT_KEY_DOWN._getEvtType())
-        #event.m_keyCode = wx.WXK_SPACE
+        # event = wx.KeyEvent(wx.EVT_KEY_DOWN._getEvtType())
+        # event.m_keyCode = wx.WXK_SPACE
         self.InstanceChoice.GetEventHandler().ProcessEvent(event)
 
     def OnParentButtonClick(self, event):