A few things,
You can't see what you stations are buying or selling at, would be nice to see this instead of '0', another column that shows prices maybe. Like a public sell/public buy line.
You can't control prices on a trading post, maybe others too but right now I only have a trading station, would be nice to be able to set some type or profit margin.
The ability to buy and sell the same item or what is in a trading station's cargo, user defined.
An interface that shows a station's profit and loss over time, so you can see if it's profitable or not.
In basics there needs to be much more user control over stations they own, as it stands right now it's almost pointless to have them.
The global trading system needs love too, some type of system that emulates so many systems around a player's station for trading using only trade routes.
I have sat and watched ships docking with my station and there are no messages saying what they are selling or buying and for how much displayed.
I'm surprised there's no mods for this yet. (station control)
Great game I do love it so far, keep up the great work.