I've been using this mod for a few days in my Minecraft modpack, but I've found that you can't use the config in Mod Menu.

Not much else to say other than to also add an option to allow using an elytra near a claim :/

https://medal.tv/games/minecraft/clips/le5dOmMH8bV-sZsjo?invite=cr-MSxlZngsNDAyMzgwMjE3&v=35

You can add your own custom exceptions, including using elytra.
Changing configs through Mod Menu will not be added. I don't think Mod Menu even supports Forge Config API configs.