Click on 'Settings' in the left hand navigation.
Click on 'Users' and click on 'Add New User'
Enter the users First Name, Last Name and Email of the user. Click on 'Save'.
Once the User has been invited an email will be sent to the email address entered.
The person receiving the email must click on the link in the email to set their password in order to log into their account.
Note: The link in the email is only valid for 7 days. After 7 days they can follow the Password Reset process to set up their account.