How to copy a material and make minor changes.
Solution
Right click on the material and select Copy. Then right click on the group header you wish the new material to be classified under and select Paste. Then right click on the copy and select Rename to give it a name which makes sense. Then edit the values of its properties as appropriate.
Notes and References
Hardware/Software Configuration
Platform: INTEL
OS: window
OS Version: XP32
Product: SOLID_EDGE
Application: APPLICATION
Version: V110MP10
Function: MATERIAL_TABLE
Ref: 001-9378496