If you have sufficient permissions, you can modify the permissions of other users by going to Settings > User Permissions.
The permissions model in Aristotle 360 is based upon permission groups.
Each group has a modifiable list of permissions. User accounts that are linked to a group receive all the permissions associated with that specific group, and you can add or remove user accounts from groups as needed. If no existing group satisfies your list of desired permissions, you can create a new group that has the desired permissions and add users into that new group.