Ability to configure which users can be assigned to features/requirements

Currently every user I add to Aha is showing in the list of users that can be assigned to a feature/requirement. Even if the user is inactive, they still show in the list of users to choose from. I would like to have a check box on the user profile that's flagged on by default that says, "This user can be assigned feature or requirement work". We'll need a filter option as well so I can filter the Feature board by these users and other places. We have a lot of internal staff that includes members from sales, support and customer success who will never be assigned a feature or a requirement but they show up in my list to select from.