Ok, ArchiCAD GSM files can define rendering materials and surfaces for it's internal and Cinerender engines but their GDL script may be extensive, and if these rendering materials depends on images for its definition, the surfaces tab and navigator will get cluttered as many manufactures may supply their products with its predefined materials.
My proposition aims for two objectives:
1. Separate GDL script related to rendering materials in a separate tab page for easier handling (just as their is a Master - Paramaeter - 2D - 3D script windows) .
2. Eliminate the clutter and the confusion that may result from adding the hundreds of images and material definitions of the different products in any project.
A good friend of mine have once told me that I´m so brute that I´m capable of creating a GDL script capable of creating GDLs.