Modding StagingRoom.lua to increase player cap

[CultureBomb_VI]

Hi, I'm in the process of making my first mod, and I cannot find any modding guide for the area of Civ 6 code that I want to edit. I want my mod to set the maximum number of players in both single player, LAN multiplayer, and online multiplayer, to the total number of leaders the player can choose from. I want this mod to be able to integrate civs introduced by DLC and other mods. If possible I want to create one version of this mod that remains compatible with all DLC including lack thereof. My coding knowledge is currently limited to basic concepts and terminology common to most coding languages. I'm trying to expand that knowledge by learning to mod civ 6. I Don't yet know how to edit StagingRoom.lua as part of a mod. Any help would be welcome. Thanks in advance.