Hello @tobles,
In the video example, Kent used a Voronoi texture to add a hammered look to the metal of the wall lamp. I figured that if I painted a rough greyscale image of bark in Blender’s image editor, I could use it the same way as the Voronoi texture on the Sculpt Draw Brush. I tried the Anchored Stroke Setting, but I found using the Texture Mapping as a Stencil and Stoke Method set to Space, allowed me to rotate and scale the painted texture as I needed to in order to add variety to the bark.