On the "Appraisal" window (tab), when you have multiples of the same item in your bags, and you only want to place one on the auctions, not all 20 of them, I see no way to accomplish this from the "Appraisal" window. It would be nice if the was a way to limit the number of stacks that are actually going to be placed on the auction when the "post item" button is used.
Possibly a field next to and right of the "number of all full stacks" field or even better below the bid and buy fields. Simply add the field, "Number of stack to posted ##" with the default to all. You could also possibly use a radial button to toggle between "all stacks" and "limit stacks" to be posted.
If this feature is already there I am just not seeing it.
But I must say: When I pull the slider all the way to the left it only shows the number of avaiable stacks. The slider needs to be moved slightly to the right of left to get the option of limiting the number of items to be posted.
That is where I went wrong; I pulled the slider all the way to the left.