Streamline changing of roles
As an admin changing the role for a user requires you to enter into each user and updating the role. Unfortunately phone number and/or other fields such as working times, timezone, etc. typically aren't set and these are required. This means that to simply change permissions the Admin must now enter in all of these fields which is an arduous task, especially if you need to do it for a team of people.
Rather, when clicking Configure for the user the role is shown in a dropdown that's currently disabled. Being able to update the role here would streamline the process.
Further, some sort of bulk editing approach would be very helpful to be able to manage large teams.