So I've created some educational expereinces with a client and received positive feedback. These experiences can take a while to get through due to long audio clips. However, some of the feedback suggestions were the ability to 'rewind' or jump back to what has just been shown rather than ave to go through the entire expereince again.
My thoughts were some kind of on screen buttons (that are not within the virtual world) but appear as flat traditional 2D buttons on the screen and appear regardless of where the using is pointing the device.
So perhaps it could be some form of stop/start/rewind buttons. Or perhps some kind of chapter markers.
Cheers, Rog.