A) Missions exist which require you to return a commodity to a base. This base is generally the point of mission origin.
A 1. This suggests that the code exists to dictate commodities be returned to a location.
A 2. Commodity may possibly be placed in hold at start of mission.
A 3. Commodity can certainly be placed somewhere in space at start of mission. 10k from base in space at a "start" point in the form of a "crate" NPC.
B) If A 1. could be turned into optional end mission destination other than the point of origin you have, hey presto, a mission where you go to point A (near base of origin) blow up a "crate" which contains commodity Zed which you then fly to your destination for reward.
Hmm. Gonna look into this.
The biggest thing is making the end mission destination different than the base of origin. This could be a huge thing for freighter trade.