[Request] Collapsible Sections on all Tabs

[Shuggaloaf]

Like the Inventory tab, but for Spell Levels, Feature categories, etc.

I know other mods offer this feature, but it would be great to have it built in. The more mods we add, and the more those require other mods, the more chance of conflicts, etc., as I'm sure you know.

Thanks for an awesome sheet and hope you will consider this.