My main instrument is a 9000 Pro with all features possible (lamps, harddrive, add-on boards, MFC-7, MFC-10 etc).
Now for on-the-road I've bought a secondhand PSR-2100 (much more portable).

I've read that it's possible to use the MFC-10 with the 2100, but after trying a lot I can't figure it out. Can anyone help me how to configure the 2100 and / or the MFC-10? Reading this forum I know it's possible...