I know you can individually go to each user in JIRA and add/remove them from groups. However, when you wish to update a group and remove one to many users, there is a current limitation in the Bulk Edit Group Members screen.
Bulk Edit.png
It only displays the Username, not the Full Name. We use our company ID as our Username, so you have to know a person's ID # to be able to remove them from the group. Is there a way to make this screen/display show the Full Name instead of (or with) the Username?