The feature exists in other games and it's not that much different from the Sentinel command which puts them to sleep until an enemy enters their FOV. Enemy enters FOV=wake up, changed to Enemy enters FOV=STOP.
I would also like to see the movement changed in general, to quit doing giant check marks. In previous GCs, the ships would do a more or less straight line wiggle from A to B when A and B were not exactly in the same hex side line(1 to 4 to 1 to 4 on the hexagon, for example, draw it out and you'll see what I mean if that doesn't make sense). Now they do this huge right-angled crap that frequently either moves them into places with enemy ships or otherwise does weird things when using ships for scouting. Makes trying to map out the edges of the clusters a little annoying.