I take it you have tried with the Mackie MCU template. My MCU (original version) goes fine, and is pretty similar (I think) and may give something like 75% functionality (the controls that are in common) ....
Yes. They are sadly completely different. I just did a search on the forums-- I've been asking for this and OMF support for over 6 years now.
I've called Yamaha. SCS. I even found a post where I offered a reward.
I asked SCS if they would develop for the DM2000, and they said that Yamaha wouldn't send them a unit.
Here's a question. If I send you guys a HUI will you develop something that works for it? I will pay for the unit and the shipping.