Can't see VRmat in vieport

[STUDIO_ARCHITECTS]

I've managed to render a Vrmat in 3ds max but can't see it in my viewport when I apply it. So the problem is that I can't edit the texture size with a UVW map because I can't see what I'm doing.
Hope I'm just doing something wrong otherwise I don't see the point in using them.

[svetlozar.draganov]

VrayVRmatMtl currently are not supported in the viewport - you can use V-Ray RT for that purpose.