Thanks for commenting!
Yea it is hard for me to invent a handful control for this idea within 48hrs, and I guess in general it is not easy to control many units at once, I am still wondering how the controls should be. xDD
funnily I made a very similar game a year or two ago for the Wizard Jam:
Maybe you can check that as a source of inspiration ;)
https://farry1.itch.io/dungeon-pusher-critical