I solved the issue with the stepover seemingly unresponsive. There is a checkbox for facing "core regions". If you check that then the settings are retrieved from a different tab. No issue here with RhinoCAM.
Also, I found the entry in the help about fixture offsets. That one is solved too.
The licensing question is also solved. There is a separate help file for licensing, and it explains how to shift the activation code between 2 computers.
Dan