When you have layer in Market Locator, which allows adding more users. You can find this option in ‘Settings’ in the bottom this page and there you can add and remove users. This settings you can find on the main screen (map) in the top right of the gray bar, click on the icon with your user name (you can see there small stooge).
Invite new user
At the bottom of the page, are settings you can invite other users who have access to the Market Locator your business. Fill in the e-mail, after they come them an email invitation when it was confirmed that confirm their registration.