PAC3 Looking for Events and Proxies documentation or some good tutorials/manuals on it.

Hello all
I’m trying to find a good tut or manual on how to use proxies and events in PAC. What I am exactly looking for is how to make stuff show up when i type something in command, eg:
I want the sunbeams to showup after I type in !aura in console. I’ve managed to find out how the Events work, but I have no idea what should I put in the Proxy- i tried with Hide variable, but I cannot find any manual to check how it works, so are there any good instructions/manuals/tutorials besides those ~50 vids on ultimate pac on youtube which doesn’t go deeper on anything?