Ability to sell items in bulk [PSHOP+]#177

I want it so that if I have 8 stacks of logs in my inventory for example, I can sell the logs in 16 logs groups for $100 each. So if I put up 8 stacks of logs for sale, the stock of logs would be 32 items in stock. When someone buys it, they will pay the $100 and get 16 logs. You could also state while making the listing that you want to sell logs in quantities of 16 for $100 but you only want to list 16 quantities of logs totaling to 4 stacks of logs available.

This would made it easier to list a lot of items at high quantities. I have played in a server that had similar functionality and it was really useful to have that feature. The servers that had this are Survive With Us (defunct) and Back 2 Basics.