Delete a mask or all
            masks in a canvas plane.
         
         
         To delete all masks in
               a canvas plane
            
            
               - Select the canvas plane in the Construction Plane
                     Editor.
                  
                     NoteIf you can see the mask layers that you
                        want to delete in the Canvas Layer Editor,
                        then the canvas is already selected.
                      
 
- Choose Delete > Painting > Delete All Mask Layers   . .