Midibox Merge

Currently my two manual organ is running fine.  Pedals have not been wired yet but a third keyboard will be wired shortly.  I currently have four DIN boards attached to one Core board by SmashTV.  I have three additional DINs attached to 01 Core board.  I am ready to merge the 00 and the 01 core.  The gentleman that was helping me via email has passed away.  So I am at a loss of what to do next.   I do have the second Midi cable.  I also have the MidiStudio software and kind of remember how to use it.  Can anyone help?

Thanks, Jay Beckham. 

Organ.pdf