Go to Users → All users to access your User Management page and hover over Manage on the user you wish. You can also click on Edit User in order to edit your users' details.
Profile
Products
Remove
Security
If you have enabled the Two-factor Authentication option (2FA) and the user has set it up, you can choose to Reset the Two-factor authentication for this user.
Groups/Seats
If you have created a User Group or Seat Offering, you can choose to Add or Remove users from the Group or Seat.