Need help setting upp cam for 2 LNB and one card



My Satellite Setup
2 dishes. One Relook 400s.
My Location
Hi, I'm new at this and need some help from you experienced guys.

I have 2 dishes and a relook 400s. I wish to use both LNB's for Canal Digital at Thor so I can record one channel while watching another. I run my Relook with Highland 2.12b. I have no preference of any special cam I want to use so please feel free to advice. I suspect there is some kind of configuration I have to do manually but I need some kind of guidance.

I'm, sorry if this is a standard question and the answer is somewhere in the forum but I really can't find it (probably because I don't know enough to search for the correct keywords)

I appreciate all help and advice I can get.