is it possible to paint diffuse and normal at the same time I have a brick texture with diffuse and normal image. Is it possible to paint an object with stencil brush that while left clicking mouse, diffuse and normal can both be painted onto object's base color and normal image?
It is possible with bpaint.
But on personal recommendation, if you need that kind of thing, you better use of MASK factors. That way you connect and arm your shader first, then you only need to paint black and white map to reveal "layers".