It can sometimes be difficult to see if all counters have been moved, and finding that one unmoved counter that is hidden in a stack or otherwise escaped notice.
Do anyone have an idea for how I can highlight such a counter? I would have liked to use a flare, but flares can only be initiated by a player - as far as I understand it. My next idea would be to use an area-of-effect. I could probably switch it on and off with a global command.
I assume that this problem has been addressed by others, so perhaps somebody could tell if they have a better solution.