Action to identify singeplayer session as host

It would help a lot with creating games with optional online multiplayer(Gdevelop’s multiplayer feature) to have a way to identify a player not in a multiplayer lobby as the host of a lobby. I’m trying to make a game thats singleplayer by default, but allows you to join a lobby with Gdevelop’s online multiplayer. When I integrated online multiplayer into the events of my game, previwing my game with the multiplayer lobbies worked, but when I tried previewing normally as one player, nothing worked because the player isn’t assigned to any of the lobby positions. I could make a seperate scene or another set of objects for singleplayer, but that would mean i’d have more events to load every time my game is started.