my idea is to add mechanic to the event group feature with a clickable switch to activate/deactivate it.
if off:the groups act like now.
if on:in the same line the events checking the conditions and if one is become true that is disable the other one events.
this idea comes to my mind when i work with my bouncing ball what is colliding with a brick and i need to check the bounding boxes of the two object.But i need activating just one event while its unavoidable to run a check for vertical bounding box edge and in the same time for the horizontal one.