How to create mobile (zoom rotate & drag) touch function?

Hi, how to create (Zoom, Rotate, Drag) touch function in mobile?
reference: - YouTube

I’m making a Medical Apps for android, and newbie to UE4 actually.
Any suggestions/help is much appreciated.

Thank you!

I’d love to know that myself, exact same scenario.

hello I have done this I hope will worthwhile
P.S. excuse my english I’m Italian

the last serves to limit the rotation in case you do not want to see below

if you can find how to make zoom let me know