you mean muting the drum in the rhythm???? i get it that way, so, you just make the rhythm in the ordinary way, then you adjust the volume down to zero CASIO doesn't forget the old rhy you made in the past, the thing is, you make the rhy in CTK-7000 (at least), and of course it has more tones that under-model doesn't have, so when you sequence, you should choose the tones two model have. The diffirence is the attitude of the drum.