I see.. I was planned to add another action for player, that they can click on the character in line and kick him out from the queue(or pick the character to move to the front of the queue). But I feel it might be too many work for player to do and I'm not sure if player will have the attention to take care of that.
Do you think this would make the game more controllable, or more hard to control? Or maybe I should add this and make the pace of the game slower?
Thanks for explaining this, this is very helpful.