The .dsa and .png file made in Studio did not show up in the menu after they were added- that is my issue.  Nothing to do with the Poser files at all- and if the material files are saved in the same folder as the .dsa and .png, saved with the same names, the .png file can be used for either the .dsa or .mt6. 

When saving the .dsa/.png file into the runtime folder structure, upon re-opening Studio 3 the items did not show in the menu to be used.  That is the issue.