To manage users (add/edit/delete) you must be logged in as an administrator.

1. Select PREFERENCES in the gray bar under the top navigation. You will see a new set of admin functions on the left.
2. Select “Users and Group Administration”.
3. To add a new user, click the “Add a New User” button.
4. To view existing users, click the “Show All” button beside the search box.
   

Once a user is added, you can see various additional settings by clicking on their name in the Show All search.

Note that the user list (resulting from either doing a search or clicking the "Show All" button) sorts alphabetically, but puts capitalized names before lowercase names. So, if you are looking for "JohnSmith" and cannot find his username, try scrolling past the last of the capitalized usernames and looking for "johnsmith".