SKETCH & TOON separate shading from lines

Hi guys!

I was wondering if there's a chance to separate the sketch and toon lines from the shading...
The sketch and toon shader tab has the object set to shading and model set on gradient. Illumination and shadows are on.

My workaround for now it is just to make a separate render applying in the render a default sketch material with 0 thickness...

Anybody knows how to make this avoiding two separate renders?

thanks!