Switching player slots during netplay session?

[Arken]

Hello, I was wondering if there was a way to simulate 'passing' the controller while online. A way in which two people could play a single player game.

I know very little about programming but I wonder if you can take the process used by the assign controller function and apply it mid-session via a hotkey, or would that upset the way netplay works and cause a disconnect?

Assuming there isn't already a way to do this, if someone who knows more than me can tell me that my logic is sound I can read up and see about implementing it myself. I'd just like to know if it's possible and if so, whether the above idea is the best way to go about doing it.

Thanks a lot for your time.

[Smashbro29]

I think this was in a previous build of Dolphin. May or may not have allowed people to join/leave whenever they wanted.

I know for sure that it let anyone in the "room" take control of any controller at any point though.