Persistent OSD to identify 3-D mode

As requested in the Help & Troubleshooting category, this is to request a persistent option on the OSD. It should show a small OSD (much smaller than the current one) which would be on screen as long as the Rotatrix is in 3-D mode and would indicate if it is in 3-D Rotate or 3-D Pan mode. If possible, it should be pinned to the window of the 3-D app rather than to the cursor position or relative to the screen containing the cursor. This would let it be positioned so it did not occlude anything important in the app.