Ok, I want to know if there is anyway to combine caps or patches from thickening a curve, into a single brush. Cause i made a ramp, and thickened it verticly, but I want to combine the patches into one curving, sloping brush. I want to know if this is possible, cause its glitchy the way it is, with 4 one sided patches.

If the patches end at exactly the same points (so the vertices overlap on one edge) you can use the Combine Mesh function.

I'd recommend you func_group them instead as combining them into one mesh will combine the lightmap of the mesh and creatin smooth at the edges which I don't know if you'd want for a 4 sided brush.