How do I keep an instance variable through multiple layouts?

Hello.

I have recently started making a multiplayer game. I'm pretty new to this sorta thing so I'm not too good at it.

I followed all of the tutorials on the multiplayer. It's all working, but my game is going to use multiple layouts. Whenever I go to a different layout multiplayer still works, but the peerid is erased.

Is there any simple solutions to this?

You can set the object to be global. Or you can save this peerID in an array when switching to another layout.