title: Can I make a UIPresentationController have userInteractionEnabled on PresentingViewController?
body: <p>I am building a custom GUI on a universal app for iPhone and iPad. On iPad it relies heavily on "sideViews" for utilities like content manipulation, detailInformation and the like (think of an advanced SplitView). From a visual point of view the new UIPresentationController is spot on for letting me present these "sideViews" (and not using a dimmedView) and the implementation has been simple to build and maintain, while still integrate nicely with the storyboard. But I need to be able to manipulate the content of the presentingViewController while the presentedViewController is visible. So my question is, can I set userInteractionEnabled (or similar) on the presentingViewController while presenting the sideViews? </p>