Originally Posted by
El Condoro
With the inventory sheet, as well as bringing in the cost and weight when an item is dragged to it, can a 'Mark-up' field be added for the whole inventory? For example, a merchant has a lot of general gear but it is good quality (or he is just a rip-off merchant!) and all stock has a 5% increase over the standard PHB price. This would be done once and for all stock ('Main' sheet?). The Mark-up value could be negative (sells at below PHB price) or positive (sells above PHB price). The Mark-up field could be adjusted by the GM if the PC passes a related Skill Check (Bluff, Diplomacy etc) after haggling.
When a player opens that inventory (that has been shared, obviously) he can drag and drop items at the marked-up price and have that amount deducted from his available gold and added to the 'treasury' of the store. If he doesn't have the coin the item is not dropped into his inventory.
I have no idea if these things are possible but they seem good things to ask for.