Autocommand preference/option

I really like this idea, I have been "that guy" on a daily basis since I started farming. If there was a way to tell your toops "Do this once the battle starts" even if the first round. That would be Awesome!! I have made it to the battle on the 2nd or 3rd round to find my cavs and/or inf Demolished or pretty close to it. The idea of the screen switching to the battle is pretty good also, but would it work if the attack is hidden? I know there would be a problem if someone was attacking u, so maybe it could only work if you are attacking. Thank you for suggesting this Carc, I have wanted something like this for a while.