there is a mod for supcom that allows area commands. you can drag a box and reclaim orders will be given to everything in it for example.
another one was the reclaim ground modification. that lets you place a reclaim command on ground, which gives a move order to that location and reclaim commands on everything in the units build range.
either one is a pretty interesting take on things. they brought up some discussion in the past but because reasons reasons people like their manual reclaim micro they were not implemented
edit:
here is the link - it was a thing 2 years ago, after which i believe icecreamer made another one that did what i described above. it should be noted that these mods were already working in game, if we should choose to do so they only need integration.
http://forums.faforever.com/viewtopic.php?f=41&t=8471&hilit=area+reclaim+command