Option to only use Pixels dice for prompted rolls

[nikolasbasler]

I wonder if it would be possible to add an option so that rolls with a Pixels are only registered if there is a (Unfulfilled Rolls?) window that is waiting for a roll (or suppress rolls that happened when there is no window, if you want to look at it this way).

This is the reason why I think this would be useful: In my group we play alot with dice cups. If someone needs to make a test, they click the appropriate button and roll their dice. This works quite well. But then they will drop the dice back into the dice cup and set it aside. This always triggers another unintended roll. I don't think this can be handled by the firmware as it's a more rigorous movement than just shifting the die to the side.

An unprompted roll can still be done with a Pixels if triggered by a chat command (or the Dice Tray module).