[Solved] P2P Advanced event handling EXTENSION - how to use

I installed the P2P advanced event handling extension, and in the example image it seems like an action is being used about dismissing an event as handled, and yet I do not see any actions like those in my events editor that I could use. Just curious to how this can be properly utilized.
Thanks in advance.

Can you screen shot the command you are talking about?

It is the only thing that the P2P advanced events handling extension adds. It appears fine for me:

Ah, I just re-installed the extension and now I see it. Guess it bugged out a little.
Nonetheless, thanks guys!