Custom landscape paint brushes with multiple layers at the same time?

[Wrex55]

Is it possible to create a brush that could paint multiple textures (layers) at once? (For example: the pic above, is a square patch of: gravel, dirt, and asphalt.)

The standard brush can toggle R, G, B, A. But it would be great if I could paint all 4 channels at once, with a different texture assigned to each channel. My painting needs to be done manually, but it would be great to have “presets” that could be stamped around.

I see that there’s blueprint brushes also, but I have no clue how those would even work, and if that could accomplish this.

And I can barely find any info out there on paint brushes. Everyone’s videos and links always talk about sculpt brushes, or automatic painting.

Thanks!

[Wrex55]

I really wish there was a way to do this. I’ve simplified my terrain drawing for now unfortunately.

When you have 8 or more layers, there’s so much possibility to have complex blends of textures, along with pre-set brushes… yet I still have no idea how.

And I’m really not a fan of automatic painting, because most of that is by elevation, which does nothing in an overhead environment where I purposely want to paint terrain layers in specific places.