adding fader multichannel on midibox64 mixer

[ed roots]

Hi, i´m a new member from spain, i wanted to make one midi mixer & i´ll wished to know  how could i enssemble a multichannel fader on midibox64 mixer. I mean, i want to fade some channels with other channels between them. Sorry 

for my bad english. please,  contact  me.thank you  very much.

[Screaming_Rabbit]

Sorry I don't get it  :(

Please try to explain it in a different way.

Greets, Roger