The basic way they work: “Enter” This is when you’d walk to the front door / Gate.
Open = “The gate should be open when you walk to it” - Closed = “The gate should be closed”.
Exit = What’s behind the gate.
Say you were a Pizza delivery man, and they asked you to come in the house (While they are out) and put the pizza on the table. You “Enter” (Walk up to) the front door /the gate and “If they left the key on the porch” the door would be open, otherwise the door would be closed.
Documentation for reference: Flow Control | Unreal Engine Documentation
What I would do is put a “Sequence” on “Right mouse button”. The first thing it does is close the first game, Then put the code that’s attached to the second gate to the “Then 1” of the sequence :>
Also, Welcome to the forums! :>