Simple procedere. You create acube, spehre or whatever. Give that the material 1 and modify that. Then you simply pull this new icon in the material summary window to zone 2 material. Ta ta, nothing is lost. Then you can delete the in betweeen object. Other option. You break the object into pieces with the related command. The pieces are done by material zones. Then you have two independant objects and can do whatever you want to - materialwise. More easy questions like that? :-)))))

One day your ship comes in - but you're at the airport.