look at this

basically the way im reading it vlayer is like texture layer (look at the first few seconds of the video), but it allows for multi selection:

texture 0 "some/random/texture.jpg
vlayer 3
texture 0 "layed/texture/a.jpg
texture 0 "layed/texture/b.jpg
texture 0 "layed/texture/c.jpg
texture 0 "layed/texture/d.jpg

basically a-c images will have a texture layer with some/random.. but d will not.
Note texlayer allows for negative values but vlayer does not:

texture 0 "some/random/texture1.jpg"
texture 0 "some/random/texture2.jpg"
texlayer -1

this will allow for texture blend between 1 and 2 (as shown in video)

chasester

PS: if im wrong please correct me, i did not have time to check this out :0

To Mysterious,
keep in mind that blendbrushing will only work for upper planes! It won't work for side- neither for down surfaces!

So i have to write a cfg. for the vlayer ?
I thought like vscroll , vrotate etc. this would work without.

@ Windecker : works great , but how can i get the number of the slot if i haven´t wrote a cfg with less textures :P ?

Muhaha thx guys , works great :P