Beautiful! It worked and I was able to open the chest with one of the actors. The only funny thing is that I can attack the chest for some reason and it shows up at top in the turn order haha which doesn't seem to disrupt the battle, but it just makes me think I did something wrong.
Quite possibly because I didn't do step 3 in your instructions because I got stuck there. I know how to set the event move route to custom but I wasn't sure what to set the movement to or how to make it happen every turn.