That's the sad thing.
Sounds to me that the op wanted to look at the area to see where the goods can go to and also a price to see how much he can make....makes sense but for some reason the game won`t allow that. It would much rather you parking up at loads of different stations and writing down prices !!! (please devs stop this torture now)
Hardly torture. And the game is set up to encourage you to explore, experiment and figure things out.
Personal example - back in the beta, I bought a load of robotics (mainly because robots were *the* thing to trade in Elite 2.

). I figured that an Extraction system could probably use some robots to automate all that mining - I was wrong. Taking them to a Refinery system didn't work either, but third time was the charm, when I took em to an Industrial system. So now I know where to offload a load of robots, if I see any cheap ones for sale anywhere.
Exact prices don't really matter too much, unless you insist on maxing out each and every trade run you make. Most of the time you'd be better off taking a slight hit and moving on to the next trade, rather than roaming through dozens of systems looking for the perfect trade each time.
With all that said, I agree with Elvo. Having a snapshot of prices at stations you've visited would be useful and would still require exploring and experimenting. You'd also need to bear in mind that prices change, so your snapshot will have a limited shelf life.