How to save custom arrangement?

[rook]

Ok, I've finally figured out how to pre-set an arrangement of my own but after I have everything selected the way I want... I don't know how to save it??!! I push exit and it goes back to the beginning and nothing is saved...I push rhythm and the same happens. What do I do to save this rhythm arrangement once I complete the steps outlined in the book?

[64Guitars]

There is no separate Save operation for drum arrangements. They are saved automatically as you enter the steps. If you've entered the steps correctly, you can hold down [STOP] and press [REW] to reset the counter to 00:00:00-00.0, then press [PLAY] and turn up the Rhythm level and Master level to hear the arrangement.

[rook]

I'm clearly not doing it right...is there a video for this?