How do I add a new user to my account?

Via the 'Settings' > 'Payment & Subscription' section. Users can click on any of the 'Subscription Info' hyperlinks. Then under the 'Subscription Info, "Pain Number of Users" hyperlink, choose the number of total users for the Account.

*** Add New Subscription and Payment UI***

Then click the 'Add New User' button to create the new user account and set their permissions.