Stencils

 
25.  Stencils checkbox enabled
  • Properties menu >> Texture button >> Influence tab
     
  • Stencils checkbox enabled
26.  Add a new texture channel

  • Properties menu >> Texture button

  • Select an empty Texture slot >> New

Note:
  • This texture channel will hold the bottom texture.
27.  Give the texture channel a unique name
  • Properties menu >> Texture button >> Name >> Mud
Note:
  • I am naming it Mud