How can I manage rights/permissions in the marketing calendar?

After creating an event, you can configure the permissions

• Set up a marketing calendar event: After you have saved the new event, the menu item 'Permissions' will appear. 
  OR
  Edit an existing event by clicking 'Edit'. 

• Go to 'Permissions'.
• Select groups and/or branches that must be able to view the event.
• Click 'Save'