Here's the idea.
So you event a brick. It is a consumable item, say, so you event it using VCE. It works perfectly.
Later on, you discover that it would be better for the player to not have to go up to the brick itself to use it, so you set up a relay system. However, you realize that you still have the issue of redoing the events. Say you're lazy, or new to eventing, or the events were just long and complicated, and you really don't want to have to do everything all over again.
This looks like a job for
/\/\/\/\/\/\/\/\/\
<BRICK ACTIVATE>
\/\/\/\/\/\/\/\/\/
So then you use that event, and everything works perfectly, and you just saved yourself the work of anywhere from 5 to 30 minutes.
This is the same as using relay events, then realizing that you want the player to be able to click on it in person to use it. Still practical.
Also, relay loops would be much simpler.
OnActivate-self-activate
Done.
