If you’d like to see this happen and want to find out what else this wonderful hardware can do, add your vote to this post on IdeaScale asking that Yamaha release the code which would allow community developers the opportunity to continue the development of the software running in the Motif XS.

https://yamahasynth.ideascale.com/a/dtd/Release-the-Full-Source-Code-for-the-Motif-XS-and-XF/240150-45978

In case you aren’t familiar: IdeaScale is a bit of third-party software, but this particular subdomain is indeed operated by Yamaha themselves and they’ve asked that users direct requests to that website. They have two employees monitoring the site, one from the US and one in Japan. In the past, they’ve contacted a few IdeaScale users directly, inviting them to a video conference in order to discuss requests and issues. It also appears that some of the features introduced in Montage OS 3.0 and MODX OS 2.0 were sourced from IdeaScale submissions.

You can see Yamaha’s announcement and a link to the IdeaScale community at their YamahaSynth website here.

Link is password-protected.

Yamaha requires that you create an account to join and vote. Here is a direct link to the account creation page.