It would help in some situations such as blocking something after 5 people go into a room. Basically the event would work like this.
onPlayerTouch>self>ifTouchAmount [5]
onTouchTrue>self>spawnExplosion [rocketExplosion]
That would make the brick explode after 5 or more people touch it.
The add on should have three events. ifTouchAmount, onTouchTrue and onTouchFalse. I'm not sure if this is possible or if its already possible but I thought it might be cool.