Somehow need to make it not insanely confusing when it comes to setting claim exceptions (impossible) and not require 10 TB of disk space.

Current idea:

• Each player list can point to another list that it extends, e.g. Ally extends Every, Party extends Ally. Or perhaps even multiple lists it extends?
• The extending list inherits all permissions from the extended list.
• Each player config option will set exactly 1 player list as the "exception" to protection. All lists that directly or indirectly extend it also receive the exception.
• Multiple lists should be able to contain the same player.

This seemingly should allow absolutely any type of configuration of permissions without having a whole config for every group for every sub-claim, as in some other mods. Also seems pretty straight-forward for backwards compatibility.