Re: Save As / Exporting
These are just different terminologies that means the same thing. TurboCAD uses Save As, as does SolidWorks. They do not have 'Export' like, say, MoI, which uses Export (
but does not have a Save As function). EDIT: Actually MoI has both, but it is under Export that you find the non-native formats. Save As allows the user to save as a new file with the native format.
I can't answer your questions about gcode.