Polices cannot be added to API. The menu item is missing and the item is application detector menu.
Component : Enforce
Missing permission on the logged in user to the Enforce console.
In the Enforce console go to System > Login Management > Roles
Click on your user role to modify it.
Go to the Policy Management tab
Check the box beside "Application Detection Control"
Then log out and log back in with your account role. after granting this role the right permission is enabled to access the missing menu to push the policies to the appliance.