1) Press the Menu button
2) Scroll to "Performance Edit" and push the cursor to enter the parameter
3) Scroll to "Tone Part View", and push the cursor in to enter
4) Use the cursor dial to select the real-time part you want to edit (MBS, LWR, UP2, or UP1).
5) Scroll down to volume and press the cursor to highlight. Adjust the volume to your preference, and press exit to leave the parameter.
If you want to save these settings so that they become the default setting, (therefore the BK-7m will power on with these new settings every time) follow this procedure after you've edited the performance edit parameters and before powering off*:
1) Press the Menu button
2) Scroll to "Performance edit" and push the cursor to enter the parameter
3) Scroll to "Save as Default" and push the cursor to enter the parameter
4) Rotate the cursor dial to select "Yes", and then press the dial to confirm all of your new settings.