I think I'm planning to write my own SPD-SX drum pad management software
UPDATE: I figured out how to dupe kits quickly. Just duplicate the .spd file in the kit folder. Make sure you rename it kitXXX.spd. Kit 1 is kit000.spd so subtract one from the filename.
Right click and dupe the file and rename

Because Roland's SPD-SX Wave Manager is so terrible.
It seems like the only thing it can do is:
- load samples into it one at a time and they have to 16 bit 44 khz
- clear pads one at a time
But you can't do:
- kit copy paste
- clear all pads
- exchange pads
- setup kit chains
So here we go trying to reverse engineer the XML format by comparing how the unit changes the kit files! Hopefully I can find somebody to show me how to setup an open source software project.
SPD-SX File Format Analysis