LandscapeLayerBlend paint replaced by image

Development Rendering
1

Hi, I´m using a LandscapeLayerBlend material to paint my Landscape. My question is: How can I use an image generated in another software like Photoshop to replace the mask created by the engine when I paint?

Thakyou!

2
  1. Create a 16 bit greyscale image in a 2D editing program - it must be the same resolution as your terrain
  2. Right click on your layer name and select Import Layer Info
  3. Choose your image.