it is possible to network Opcode -> Motu units as per the opcode manuals for the studio 4 + 5.
 i have added this content to their own threads, visit them for detailed info + to learn how
these interfaces can be used in combination to have a large number of midi i/o available
to one or two macs at a time!



opcode studio 4:
http://macos9lives.com/smforum/index.php?topic=473.0

opcode studio 5:
http://macos9lives.com/smforum/index.php?topic=474.0