WED Surfaces with multiple Texture Stages

It would be usefull to have multiple Texture Stages for a better workflow with shader on level blocks. This texture stages could used in Shaders with entSkin1 ... entSkin4. On this way you don't need multiple materials as example for a detailmap shader or a parallax shader.
Or is it possible right now with some tricks like importing FBX levels or convert mdl to level geometry?

I like this idea and would like to be able to set two extra textures per texture in WED which can later be accessed through entSkin3 and entSkin4.

This is planned. It won't work through assigning several textures, but through texture names that add two additional textures to a surface texture, f.i. for normal maps or displacement maps.

Ok, thats great for most shaders. But then it doesn't support different scalation on the texture stages or is this only possible with shader code? Different scalation is needed as example for shaders like detail maps.

Yes, for a different scale you'll use a shader or FFP effect. Wasting an UV set for the scale is unnecessary.

Blocks have 3 UV sets for the texture, the light map, and the tangent space. There is no further UV set available.