Adding another roomoption to pun?

Fokes

Hey everyone, im trying to add gamemodes to my game...the code i need to change is this:
PhotonNetwork.CreateRoom(this.roomName, new RoomOptions() { MaxPlayers = 10 }, null);
I just have absolutely no idea how to add another room option...it has max players, but i want to add a gamemode to it..
Im using the classic PUN asset, and using the worker demo menu.
If anyone could help me with this i'd be sooooooo greatful.
Even if its just adding an int representing the gamemode it would help...(then how to access that from inside the game)
Honestly sooooo stuck with this...kept trying different techniques but nothings worked....
Thankyou everyone for reading...please help haha!!

OneManArmy

Hi, something like this:
newRoomOptions.CustomRoomProperties = new Hashtable();
newRoomOptions.CustomRoomProperties.Add("gm", gameMode[modeIndex]);

If something is not clear, you can download this sample project:
https://armedunity.itch.io/multiplayer-kit-pun-classic

Fokes

I downloaded the sample project but i couldn't quite work out how to add it...can anyone help me any further by any chance?