On several occasions I've had the need to call functions in Visual Studio
that take optional parameters, such as TextSelection.Delete(int). In VB
macro code I can do the following:
  Dim td As TextDocument = ActiveDocument.Object

I often open two panels of source code when I edit my stuff. I experienced
now and then, that the class/member selection in the top of the editor does
not work (it does not jump to the selected member). I now found out, that it
seems to be failing when I have 2 panels, in one ...