Do the log files include the currently played champion, and could it then be expanded to read what these are? Suggestion for including it in the setting would be to have a default scene for champions without a user-specified scene, then a drop-down menu with all champions. When a champion is selected, they all start with having their setting on "default", to show they're using the default scene, followed by being able to select a specific scene for each map for the selected champion.
Also, an option would then need to be added as "Champion specific" for the in-game scene choice.
Also, an option would then need to be added as "Champion specific" for the in-game scene choice.