This page allows adding new team members on an individual app level.
If you need to provide access across all the apps in the organization, use the Team settings.
To go to your Settings, click on your organization name in the bottom-left corner.
Under the Account settings, choose an Application tab and then a Team tab, where you can find the list of all your application team members and their roles. If you need to invite someone else, click on Add new member, enter the email address and choose the proper role.
You can assign two roles to the team member who you'd like to add on an application level. Below you can find more details about each role's permissions: