You can copy the chord assignment of one chord pad and paste it to another chord pad.
Procedure
Alt/Opt-click a chord pad, and drag it to another chord pad.
While you drag, the frame of the destination chord pad is highlighted in green.
Result
When you drop the pad on another one, the assignment of the first pad is copied to the destination chord pad, including its settings. An exception to this is the Adaptive Voicing Reference setting, which remains on the chord pad to which it was originally applied.