To add a user, you will need to first of all ensure that you are logged in.
Once logged in, open up the menu in the top left corner and then select "Users".
Click Create a new user.
Fill out the required details (Username, first & last name and Email address). Once happy with the new user, click "create".
(SMS.Social is a method of posting where the user texts their message to a number and is posted from there.)
The following is the process a user will take once they have had their account created.
Once the user receives the email, they will need to click to verify the account.
This will then ask them to complete their details to confirm the account:
Once filled in, they will be returned to the log in screen with a message: