The lobby can be created manually by using Photon provided methods or using a helper tool found also in the 'Tools' menu.
Click on 'Tools/Combat Framework/Create Photon Lobby' to create default lobby user interface.
That will create a Canvas object with all necessary basic UI elements for lobby usage.
Next, to add multiplayer room ( scene ) names by expanding 'Rooms'' list field and adding scene name and icon that will be displayed along scene name.
After lobby has been created, the user can rearrange or
replace UI elements as wished.