Frank,
I understand from previous e-mails that you have 2 problems with the drumsounds in Yamaha styles.
1. Yamaha styles use drumbank 16256 instead of 127.
2. You want to remap the drum notes.
The drumnotes converter in OMB is for that purpose. I used it to convert hundreds of arabic styles.
You should first make a conversion table for the remapping of the drum notes. Then in the style window:
1. Press the Ctrls button. Press the msb button. Change the value in the drum track column(s) to 0. Press the lsb button. Change the value to 127. Press the exit button.
2. Select the menu option Tracks/Convert. Select the drum tracks. Select "in all parts". Press apply.
3. Save and load the next style
In many (badly) converted styles the patch/bank and other controllers are repeated in each part of the style (they should be defined only once per style). To deal with that in step 1 in the Ctrls window, select the option "apply this value style wide" and double click on the value on the first row. All the controllers of the current selected type in this column will be moved to the control area.
The main problem in this all is defining the drumnote conversion table. But you have the definitions for GM and the XG drumbanks.
Jos