Select a motion point, set any property of 'Rotate X (3d), Rotate Y (3d), Translate Z (3d)'.
Select the layer and set a value of 'Transform Specific (3d) -> X-Asix, Y-Axis, Backface' property.
Select the slide of the layer and set a value of 'Perspective View (3d) -> Depth' property. Note that there is minor issue of a few browsers with 3d perspective view. But 3d transition of 'Rotate X', 'Rotate Y' and 'Translate Z' are safe for individual layer even without 3d perspective view.
Select the slide of the layer and set a value of 'Perspective View (3d) -> X,Y' property.