Users building interaction primarily via clickable 'actions' would like to disable the forwards <- backwards <- controls, and text instructions.
This setting should be set by the author on a per-presentation basis, as some Jigs would be preferred to have control, and others not.
Hiding controls and UI would force users to progress through their content only by clicking on content inside the presentation, or allow autoplaying to be the only way users can experience a 3D presentation.