Using the item dropdown menu you could "use" items (the verb depended on the item in question), drop items, give items to other players or get info for the item.

Item information contained a larger picture of the item, along with where to buy and sell it (if anywhere), where it grows (if anywhere) and how much it weighs.

When you select "drop...", or any action with an elipsis, you could choose how many of the item to use for that action.