Would it be possible to add a world swapper?

[sinnoaria]

Since you can swap worlds by renaming the save files (ie. if you change save_4 to save_0, your 0th character slot character (as according to the game, not the main menu) will have your 4th character slot world.), would it be feasibly possible to add that as a feature?

The analyzer does sometimes have issues with duplicated worlds (for example, I find the correct world on character 1, but need it for character 2, so I copy the world to character 2 without swapping.)

Sorry I can't help much here, but files and gui are two of the things I'm worst at right now.