To change modes, with hopper OFF...hold down th button for about 5 seconds...ro just hold it doen till teh lights start flashing...will go red, gr, gr, gr red...will do this pattern fo r10 seconds...in teh mean time, press teh button for the number of times you want to go up a stage...so 2 presses, lights will flash red, gr, gr, gr, gr,gr,red...once you get to 6, if you press one more it goes to 1 again.