Solar Observation bearing input question

[draftsmantls]

I'm running autocad 2004 and running survey 2008. I'm trying to get a average true bearing, but the information I have is foresight reverse, foresight direct, backsight reverse, and backsight direct. I would like to know if there is some kind of setting that would enable me to input these bearings and if not then how would I go about getting an average true bearing with this data. Of course I have all of the other required data as well such as lat., long., time. etc. Well, thanks in advance.