I think he aimed to have it used on a person walking ON a brick.
The original request for it came from a trampoline idea.(...Which requires hitting a brick on the Z axis.)
Still no checkvariables?Waaaa =/
What? ifVariable?
I think he means you cant tell what your Variable amount is. Example: If you click on a brick and it tells you your variable amount. but i think there is already a display variable.