When you delete a user, they are removed from all groups (including All users) and are marked Deleted. They are not completely removed from the MyQ database and can be undeleted.
To delete a user:
On the Users main tab, select the users that you want to delete, and then click Actions. The Actions drop-down box appears.
In the Actions drop-down box, click Delete. You can find the deleted users under the Deleted search option.
To undelete a user:
On the Users main tab, under searches, select the Deleted search option. The list of deleted users appears.
On the list, select the users that you want to undelete, and then click Actions. The Actions drop-down box appears.