To Add Users, you must either be an Administrator or a Project Owner.
Add user(s) to a single project:
Select a Project, and in the User Panel on the right side, select the 'Add user' button:
Once you select 'Add User', you will be prompted to select an existing User that has access to the account or enter an e-mail address to invite a new User that is not currently on the account.
Existing Users on the account will be added to the project instantly.
New Users that are not currently on the account will receive an email that will allow them to set their own username and password.
Next, select the Role for the User - if you are unsure about what role you would like to assign, you can check this on the Roles page of Administration or select 'User's Default Role' at the bottom of the list.
Finally, select the Add user button:
Adding user(s) to multiple projects (Admin):
Go to the Administration page and select the 'Users' tab to see a list of all the users in the system.
Select the check box next to one or multiple users, click the 'Actions' dropdown menu, and select 'Add to Project'.
A pop up window will appear allowing you to add users to multiple projects with different roles for each.
Click 'Add' to save.
Editing a User's Role on a Project:
To edit a user's permissions on a project, hover over their name and select the 'Edit' icon to the right of their name.
Now you can change the User's role and select Save and you can also Remove the User.
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If you are an Administrator looking for more information on User Management, go here.
If you are looking to troubleshoot adding users, go here.