Thank Thomthom...! I understand that...
I have removed old TT_lib and instal new TT_lib2 of you.
I have now used material tools and thank you so much.

I encountered problems when installing [Plugin] Material Tools (2.6.0). with the following error message:
"material tools requires a newer version, 2.7.0, of TT_lib"
I also use TT_Lib2-2.9.0, but still error...I doubt Google SketchUp 8 version is too old ...

Can you help me?

Thank so much.

Very good, material tools are a great tool and helps me alot...
Thank so much Thomthom...!