No problem. First select the instruments that you wish to place on an OTS button. Select the main, layer and left, then set the volumes accordingly. Next, press the "memory' button located on the lower right side of the keyboard, then select the OTS button relative to the main button that you've selected. For example A-1, B-2, C-3, D-4. A new screen will open that says OTS has been changed... Press yes and the style screen will open. Make sure the correct style is highlighted, then select "save" and "OK". A new screen will open and tell you the style already exists and do you wish to overwrite the style. Press yes and the new style with new OTS settings will be in place. The procedure must be followed for each OTS setting.
Cheers.
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)