Rotate a Revit Floor Plan view in 3 dimensions:
Go to a Floor Plan view and make sure the Crop Region is turned on
Now open a Section or Elevation View
Tile the windows in Revit so you can see both views
Select the Crop Region in the Floor Plan view
Switch to the Section or Elevation view (the Crop Region is still selected)
Start the Rotate command in the Section or Elevation view
Rotate the Floor Plan away from the horizontal plane. Try 20 degrees.
Experiment with the above process until you have created a sort of forced orthographic view… but Revit thinks it is a Floor Plan! You may have to switch between some sections running perpendicular to each other and keep rotating the Floor Plan crop region until you capture the view you want.
This means you can have Rooms showing. Which means you can have a Room Color Scheme showing up in a ‘kind of’ 3D view in Revit.
It is also a nice way to see how View Range works. As you experiment with the View Range of this special Floor Plan, you will see more or less of the elements (a bit like a 3D section box).