Hello,
I think the best way to do this is to create a material library...
Use that "get material" button on your material editor + browse from material library, and save as to create a new one...
When this is done, you can use the "put to library" button to... do exactly that!
Then, your materials are stored, you can use the slots to create other materials by reseting the existing ones ...
(You must, however, re-save your material library before reseting existing materials or exiting max, or your changes would be lost!)
Olivier.