Most of the time the system will have a super user assigned. This super user is allowed to administer the system. Once you have signed on as the super user, there will be a pink or blue button appearing at the bottom far right corner of your screen. Place one finger on the button, the following options will appear
Manage product, Manage staff, Add new page, edit page, Add new button, setup wizard
select the Manage staff button to allow you to create a new user. Fill in the appropriate lines then select the ADD function to add the user to the system. You can repeat this to add more users.