Watching casts I often see players bunching up their units in order to trap or block enemy commanders, the casters refer to it as "shift G" however by default this doesn't seem to do anything? and when I look through the hotkey list nothing jumps out at me.

Any tips would be appreciated.

@magge Yes, the latest.

Thing is I am not in any matchmaking queue and the only way to fix it is to restart FAF, not the end of the world but it is annoying.