Hi Lee, This month I wrote code to allow using a 3dConnexion Space Navigator input device with Chimera on Mac computers. I believe the same code would work for the Space Explorer and other 6 degree-of-freedom input devices from 3dConnexion. Unfortunately 3dConnexion provides completely different device programming interfaces on Windows and Mac and Linux, so my code will only work on the Mac. I do not know when I will have time to develop the code for Windows. Our Mac space navigator support is not yet in the Chimera distribution. I still need to fix a problem where slow rendering causes greatly delayed response to device input. I have not been able to find in the 3dConnexion programming documentation how the events are queued on the Mac and they do not provide driver source code so progress is slow. Tom