Hey, thanks for playing!
The game is in the early state, so I haven't built a proper tutorial yet, focusing on core gameplay. I do have plans for it, though!
As for the "group control" - you're not the first one to mention it, I am considering it. Right now, it is as you said - strategic positioning is the big part of the game, and I would not want to take away from it. I do hear you, and I would like to address the situation from the different angle - by introducing more mechanics that utilize individual controls and help to maintain formation.
I am happy that you find this game fun! Makes me want to work harder to improve it!