I would like to be able to add Custom Categories.  Right now I want a 2nd or overflow category for logins and software licenses that I use less frequently.   The problem that I'm really trying to solve is that I have a lot of stuff (mainly logins) saved in Enpass.  I made myself a "rarely used" vault, but then I have one other vault that I use even less.

It would also be helpful to be able to select and work with more than one vault, but not all of them.  (The currently options seem to be one or all). 

Enpass already supports the creation of custom categories. You can create and manage them from the “Categories” section within the app settings, helping you organize your logins and other items exactly the way you prefer.