Utilize product's disable features

Currently the only way to disable users is revoking application access and removing all group memberships ( so they don't appear in assignee lists ).

This request is for the ability to disable users with a single click, much like JIRA and Confluence disable user functionality.

Additionally, a nice-to-have would be an option to not show disabled users in user management screens ( for example a check box that would include or not include disabled users accordingly )