Without a doubt. I've often thought I'd like to be able to type in my requirements, such as show me all of a certain type of item that costs 50,000 credits or less. If it's higher than that, I don't even want to see it. I shouldn't think it would be hard to add that as well.
Heck, as it is I'd even settle for being able to see Mk V items without seeing Mk VI items. Mk II and III can be separated by rank, but V and VI are lumped together, as are VII and VIII.
Exchange should be Auto Sorted by Lowest Price first. That would solve some problems with the exchange. Everyone would not see those extortion prices, unless they are really digging for very rare in demand items. I did hit a limit on how many items you can for sale in exchange. Need to return items if they don't sell within a week from posting.