Interesting suggestion, might help preventing the IDE from adding units that are already there but in a different format, like ActnList rather than System.ActnList, which is an annoyance when you have forms being used with different versions of Delphi.

Interesting suggestion, might help preventing the IDE from adding units that are already there but in a different format, like ActnList rather than System.ActnList, which is an annoyance when you have forms being used with different versions of Delphi.
http://stackoverflow.com/a/33684731/49925