Maybe I am the only one, but I found it hard to get my head around the Axis when using the Modify> 'Rotate Object in 3D' dialog box.
Can you therefore please :
1. Add the letters of the axis X, Y & Z into the working plane as floating text next to the line if possible.
2. And make a 'preview' button in 'rotate object in 3D' dialog box.
Attached file for clarification of what I mean.