To create a shop, simply hit a chest or barrel (left click) with the amount of the item you want to sell. The creation dialogue will prompt you for a price (in diamonds), enter a whole number. Ta-da! You have created your first shop.
To edit or remove your shop, right click the shop sign to open the Shop Management menu. Click on what you'd like to change, or Remove Shop if you would like to remove your shop. Removing your shop does not delete your stock.
To stock your shop, simply put item(s) inside the chest or barrel.
Market plots are available! Just ask staff to assist if you're unsure how to get one.
To make a purchase from a player shop, left click the shop sign. You will be asked how many of the item or item set you would like to purchase. Enter the number into your chat bar. Done!