Treibball training - Push the ball

Since Fergus only has a 1 1/2" nose and is afraid of doors I can't teach him to close doors with his nose (teaches the dog to put pressure on the item being targeted) he is going to have to learn to push the ball off a dish that is keeping the ball stationary. Next he is going to have to learn to move around the ball without touching it and directing the ball to where I want it!