Really?? I'm going to try that. While it may be a bug, it is brilliant! I don't have to keep 'grouping' my units every 10 minutes.
even if it does, i'm using it! awesome. that's nearly as handy as the ctrl-click build order to move a 1-time build to the front of the queue! so many handy tips. yet I still suck.
Glad you like it though its not my idea. I was using this from old TA times a lot. Especially useful when u plan attacking while on the expansion phase.