Com Counter GUI Display: Just a small on-screen number of how many enemy and ally Coms remain in play. There's a sort of version of this in existence already, but it's not always on-screen.
Auto-take: Just automatically takes untaken units as soon as possible.
This did exist a long time ago but I can't seem to find it any more.
Edit:
Ok, bit of an update. I have another request and one more idea
Widget Profiles: So I had 5 FPS in chickens when I had all my usual widgets on as normal. I wanted more FPS desperately so did /luaui disable. Took me to 220 FPS

Could use some tool which saves and loads widget profiles. Widget profiles being the states of widgets which are enabled or disabled. So when things get laggy, I could hit a keybind and it disables all the unnecessary widgets defined by myself.
Idea, Queue Saving and Loading: So this one would save and load build queues, orders and commands. When a player is ready, they could hit "record", and the widget would then save all actions performed by the player until the user hits "Stop recording". Then, in future games, the player could just load the queue and sit back and watch how it played out before

I suppose it's kinda cheating in a way but would be quite funlolzy in some cases.