merging midi signals project HELP!

previous question:

hey, I need some help.

so Im working on building a Usb Bus powered midi mixer
based on 6 of the Highly Liquid Midi CPU's

one of the functions of this planned mixer, would
be that the use can plug other midi devices into it
so that the new devices midi signals would merge
into the mixer's own midi/usb out, therefore eliminating
the need for more than 1 usb port.

as well as merging the signals from other devices,
I would also need to merge the outputs from the 6 highly liquid cpus
into one central usb bus out.

I have no idea how to do this. any ideas?

thanks!


I found a device that will merge 2 standard 5 pin midi inputs
into 1 5 pin output.
http://www.ucapps.de/midimerger.html

New Question:
this is fairly dumb..
is there a way to either
A) modify the controller in the link above to accept usb bus midi cables?
and if not
B) is there a cord that converts Usb bus midi to standard 5 pin midi, so I can
use the contoller from the link above?

thanks