This feature is exclusive to PREMIUM or PLATINUM accounts, which can have up to 5 and 25 user profiles respectively. If you are a BASIC user and wish to benefit from this feature, please upgrade.
Click on your account avatar in the top right-hand corner to access the navigation menu:
You can add and manage User profiles here:
To add a new User profile, click on the blue "+ New user" button.
In the window that opens, enter the information to create your User profile. Select the access you wish to give the profile in the Access tab.
You can modify a User profile at any time. Click on the User's name to update profile and access information.