Routing channels to a sub group

[WillM]

Just wondering how to route 5 channels in the DM4800 to a stereo sound enhancer.
I have the sound enhancer connected to ASN SND8 ASN RTN8 and ASN SEN 7 ASN RTN 7.
It only seems to let me route one channel to each of the inserts. Is there another way of doing this that will allow me to mix a sub group through the enhancer?

 

[TascMan]

I don't know much about it, but there is this add-in card:

http://www.sweetwater.com/store/detail/ ... 4Aod03IAxg

Both DMs have the ability to do surround mixing, but I think they are made to work with this card.
I've used this cirlinca software, DVD Audio Solo Ultra, for this in the past and it worked out great. Haven't used it since, only for lack of need.

http://www.cirlinca.com/products.htm