For anyone else wondering how this can be accomplished.
I managed to get what I wanted by adding a new tool, 'Hi-def Plasma' and in the tool setup goto the details window and drag over the 'Material Code' so it can be included in the CAM output file. Then make sure you have a material code present for the different materials. As you can see in the pictures, the third line down is now filled in.
'Material: '
vs
'Material: GALV22'