No. Not right now. Unless someone comes up with some sort of interface using IR or the 7 pin connector. I don't believe HTM has any plans for this.

This may sound like a bit of work, but I like the idea that Daniel and others have had of planning out their layout in a Spreadsheet before programming the MX-500. In the rare even that your MX-500 loses its programming, at least you have your master plan to go back to.

Even doing so on an 8 1/2 x 11 sheet of paper and keeping it file away would be worth it. IMO.