I would like to see an option to set a buy/sell price to auto buy/sell a select quantity of items in the steak market. For example if kabobs reach a price above 10,500 automatically sell 2,500 kabobs. Or if steak reaches a price below 35,000 auto buy 500 steaks.
Obviously truffles would only have an auto sell option.
This could be a farm supply perk for each item in the steak market (steak auto/buy, kabob auto but/sell, truffle auto sell)
Alternatively this could be tied to a friendship level quest with a rewarded artifact supplying these abilities. (Story line goes as follows; such and such villager is interested in starting a day trading business help them launch their career by supplying this list of supplies over and over again until they are successful and out of an abundance of gratitude they provide you with this creative pun named item that represents their willingness to provide their services to you.
