ckobu,
You can copy a Part to an alternate channel in Channels Manager and modify the notes then set the CASM to play different chords. I think if you are used to working in a DAW, that is why the Multieditor seems so difficult. Each software has its own conventions. Many DAWs work similar, but Thomas took a different approach.
Since I rarely use a DAW it was easier for me to get to used StyleMagic. I gave up on Cubase using my Style Template since it doesn't support CASM settings. I had to go to StyleMagic. I bought a copy of Style Factory from EMC, but is has bugs in it including wrong CASM settings and doesn't support the newer keyboard Voices. Again I had to go to StyleMagic to correct the CASM settings. I found that making styles from song files is rather limited, so I asked Thomas to add the Export / Import Parts feature since he had already included Export / Import Sections. Both functions include CASM settings when we Export a Part or Section. This is far superior to any other program out there.
My intent is to eventually export ALL parts from the Preset styles on my PSR S970 as well as other styles. Also I can convert Multi Pads to 4-part styles and save those to disk. It will probably amount to thousands of files. I have organized folders on drive D of my Windows MIDI computer that follow style type and the 8 part categories. That's how I will build new styles. It will be similar to
Style Creator Assembly on the computer but have more and better access to all part parameters, plus good Voice and Drum Kit Editors.
As I said, it's a matter of getting used to
and using just one piece of software to create styles. That was the idea behind my asking Thomas to add the new features.
Joe H