editing the sounds in styles is done in composer before you copy to custom.

Therefore copy each style back into composer:- composer, custom style copy, from custom to memory bank. (press direction switch if not the right way round, press ok).

exit, go to bank you have copied to, go to the pattern you want, ok, select bass (or other tracks), now change the sound in the sound group. Repeat for the other variations etc till satisfied.

now exit back to composer menu, custom style copy, from memory bank to custom style, again using the direction switch, press ok.

the changes are now permanently in the custom section.

how do you understand what some people believe they achieve by leaving a bomb in a public place?