We will continue to add more support for 3D to Catalyst. In the current version you can rotate objects in 3D via the "3D Rotate" effect in the timeline.
To use the 3D Rotate effect
1. Select a transition or action sequence in the timeline
2. select the object you want to rotate on the artboard
3. Choose Add Effect > 3D Rotate in the timeline
4. Adjust the start and end rotation values in the properties panel.