...
To create a new group click the Create button. To edit an existing group, select that group and click the Edit button.
Enter the required Group details as described in the table below.
...
The Select Read-only button provides a shortcut for selecting all permissions that effectively grant the group read permissions to every FlexDeploy object.
Deployment Permissions for Environments
If you wish to configure specific environments where you would like groups to have permission to deploy to, click the 'Deployment Permissions' tab of the Edit Group screen. Any environments you want the group to have authority to deploy to, shuttle to the 'Selected Environments' side of the the shuttle box. By default, the 'All Environments' checkbox is checked.
...