HUI 16 channels

[Nowell]

Hello.
I have a Ramsa WR-DA7 digital mixer.
Is it possible to control more than 8 channel faders at the same time?
The mixer uses HUI protocal.
I can connect the surface with the   AZ control. (HUI)
I can control 8 channels only at a time.
The mixer has 16 channels Plus 4 busses and a master.
It would be great to get all the faders controlling.
Only one set of midi in/outs.
My DAW is Sonar Platinum.
Any ideas?
Thanks...