I am doing a research now for iOS inhouse app. And I may need to add an entitlement to my app to implement some functionality.
I know that it doesn\'t work with iOS
Enterprise program doesn't allow to add custom entitlements to your provisioning profiles. So, you can't create enterprise apps which have special entitlements.
One more additional note:
XCode allows to add entitlements file. However, it's rejected by iOS device, because entitlements in it won't match your provisioning profile.