Bulk Removal of Users from "Private" Categories
I use "private" categories for many different purposes. Recently, I had occasion to remove several users from one of these categories and found that I could only do so individually via the "Users" setting which is slow and inefficient when dealing with more than one user.
My suggestion is to add a "Remove" users capability to the "Categories" setting which would work similar to the "Add" users capability.
Clicking the suggested <Remove> button will display a dialog for me to enter user email addresses for removal.
After entering all email addresses targeted for removal, clicking the <Save> button would remove the targeted users.