I was thinking it would make the TU Economy 100 billion times better If when you sold an item, you get a slider for how many (of the paticular item) you would like to sell! This could also be done when buying items, I was thinking about the fallout trading system when I had this in mind. This feature would also help the TU Servers, by shortening the sell/buy list and whatnot. Seems like a Win-Win to me!
This is already a planned feature. Thanks for the suggestion.