How can I utilize a single G-code to cut two separate parts, each on its own stock, while both stocks are clamped onto the same machine?

[penr]

I have 3D printed a clamp that can hold two wooden pieces of stock reliably and in a consistent spot on my CNC machine. The stocks are the exact width of the finished part's dimension, so the "Stock Contours" option in the geometry tab are selected. The two stocks are perfectly parallel and a fixed distance from each other. I can generate a tool path that works well for one stock, but I dont know where do go from there.

Do I duplicate the body in the design tab? No. Fusion throws an error when I return to the manufacturing

tab, because the setup is outside of a single stock dimension, and it is told to follow "Stock Contours" as aforementioned. I know there is some sort of feature in the setup > post process tab, but I'm unfamiliar with the WCS and it's as if it's in another language to me. 

Please help!

[dwilliamsFM6K4]

Make a pattern, or use multiple Work Offsets

[matty.fuller]

If you know the distance between the parts precisely you should just be able to put your toolpaths inside a rectangular pattern.

To use multiple WCS offsets... depends on your machine setup. The general idea is the origin for one part would be G54 and the origin for the second would be G55, which you dial in or probe at the machine. In your Setup, under Post Process tab, you can use the WCS offset (see below)... by default it will be zero which is usually G54, entering an offset of 1 would output G55. 

Again, this totally depends on your machine control & post processor, not all machines work this way. Sharing some info about your machine and example of your posted Gcode would help in providing advice.