Create new bass pattern

How do you create a new bass pattern on the KN-6000? My old keyboard was a KN-1500 I could change it with no problem. But this KN-6000 has had me lost trying to do this. Thanks to anybody for the help on this subject!!

In order to create a bass pattern or any pattern, you have to do this in COMPOSER. I am not familiar with the KN1500 but I am almost sure you had to do this in that model.

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