Joe...
Since you have posted this identical post on the CAMheads forum with conflicting info, I will try and make a stab at answering your questions. You also have not clarified on either thread what exactly you are trying to accomplish.

IF you wish to save multiple toolpaths with the same identical tool to a single file, simply select them all in the toolpath list and toolpath with your machines brand of "arc inch" postP.

If you wish to save each to a separate cutting file, then using that same postP and generate one for each.

IF you wish to save multiple toolpaths with more than one tool, you must first select a toolchange postP from the postP list. With a CAMaster these would be listed as "...ATC", "...FTC", "...X-3" depending on the machine. With a ShopBot you would select one that had "...TC inch" in the name. This will allow you to cut, according to your selection order, which each tool, and then manually change the bit, rezero the Z, and continue cutting with the next tool. This process will repeat for each unique tool number in your toolpath list.

This manual toolchange feature has been in use by both ShopBot and WinCNC for around 3-4 years. I imagine mach has it too. Enabling it is simply a matter of selecting the proper post processor.