Plots are unlocked at Prestige 2. To claim a plot, warp to the plot world and then do
/plot auto to automatically warp to a plot to claim it.
Player shops are an alternative to the auction house for those who want to purchase or sell things in bulk. To create a shop, attach a sign to a chest and then enter the following information:
Amount of items to buy or sell
A "B" or an "S" to indicate if the item will be bought by players or sold. After that, a number to indicate the price
Leave an "?" on this line to auto-detect whatever item is currently in the chest, or you can specify the block type