Dual brush function in texture painting? I am wanting to mimic the 'dual brush' function from brush settings in Photoshop, with texture painting in Blender. Essentially, what I am after is the ability to have either two brush textures that I can blend between  in a single stroke, based on pen pressure. Or two whole brushes i can blend between based on pen pressure. Does anyone know if something like this exists? 

Fyi, I am trying to recreate Dave Grecko's DG_Main brush from this link: https://youtu.be/-oPp6NE4WL8?t=50

Thanks for any help!

EDIT: Answer is below, thanks! There is a function I can work with to get close enough to what I am after :)
Edit: No, there isn't a way to switch between two textures based on pressure in the brush itself. The example given shows how to switch between two colors with the same mask texture used, which is closer to what the linked video showed at the time mark given. IF you simply want to mix two textures, one can be set to the brush texture and one to the brush texture mask, and use separate mapping.

If the gradient is what you are looking for, here is a quick example of the settings to use with a 'Texture Mask' brush and using a two stop gradient set to pressure.

Here I set an image of a square to the main brush texture calculate alpha, rake and use stucco on brush mask set to 'cutoff' for pressure. I hope this one maybe helps. Square has to be mapped to like 1.60 instead of 1 so that there is visibility of the edges inside the brush sphere.