How can I select the Rhodes sound on my Crumar Mojo Classic or Suitcase or Desktop?

The Crumar Mojo Classic/Suitcase or Mojo Desktop only have tonewheel organ sound. Bonus/additional sounds were present in the "old" models Crumar Mojo dual and Crumar MojoXT but they are not present in the "new" models. Mojo61 has tonewheel sound, combo organs, pipe organ, rhodes, clavinet, wurly piano and acoustic piano.

There won't be any software update in the future to add additional sounds to Mojo Classic/Suitcase/desktop.