There should be an option to create a Tab that the player can give a custom name to and put between characters.
The player should be able to change the background of the character selection screen for each character, using a new feature in the game where you screen grab an area and transfer it to a background storage bank that the player can access to use for player backgrounds on the character selection screen.
Additionally the player should be able to use their abilities while on the selection screen, that would be pretty dope