Hello to the community!
Unfortunately I am still relatively new to the Unreal universe. Today I received a request from a customer asking if it is possible to rotate a 3D object on a display, but this rotation should be controlled remotely from an iPad. The absolute dream would be that this is not only controllable via the iPad, but at the same time also visible on the iPad, as well as on the external display of the PC. Perhaps some UI elements should also only be visible on the iPad so that the models can be switched through.
Unfortunately, I have only just gained experience with creating and placing a scene in the UE, which is why this is currently beyond my horizon. I firmly assume that this is possible, but I can’t find anything explicit about it, as it only ever describes how to integrate the iPad as a remote camera for the engine.
Can you tell me if there is an interface for this? And how does it work?
I look forward to your answers and thank you for your help! 
Kind regards
Patrick