Select SD90 Voices (and user voices) via MIDI?

Hi!

1. I purchased the Roland A-800 Pro 61 key midi controller connected to SD90 and I wanna select Voices in right hand via buttons on Roland A-800. So I assign the buttons to Program change MIDI command with number (1..128) like PC 1 = Romantic piano ... It's OK, but how can I select my User Voice from subfolder via MIDI !?

2. Question: It's possible select Voices (predefined in Styles) via MIDI? It will be very nice select 4 voices in Style via 4 buttons on midi controller? Every style has some best assigned voices predefined ...

Any experience? Thanks for help.

or Where is please SD9/SD90 complete MIDI IMPLEMENTATION chart with sysex etc ...? I found only some voices tables Thanks.

Something usefull I found here https://www.youtube.com/watch?v=c4EYbeH3w-g

Thanks to IMMusic!

Thanks country_man - Drop us an e-mail at curt@immusic.co and I'll send you full MIDI implementation including a ton of sysx commands if you are interested.