Support for iOS 14 Split View's 3 column layout and compact width controller
So we've been looking at the improvements made to iOS 14's UISplitViewController, namely, you can now have 3 columns with the primary, supplementary and secondary.

Also it now supports the ability to show a different ViewController for CompactWidth's.

As I understand it, the MvxSplitViewPresentationAttribute enables us to describe which controller maps to the Master and which maps to the Detail. But that's the pre-iOS 14 setup.

Can anyone provide me of some guidance or tips what I might need to write or change in the view presenter so that it could recognise an extra column as well as being able to work with the CompactWidth alternate view controller?