Perhaps the ability to give access to certain players for the ability to enter your house. If you give them access, they can enter your house whenever you want even if you are off, etc. Also perhaps another ability to give access to players to edit your house. They can move furniture, add furniture( that you have in the house inventory), or be able to remove them( it goes back to the house inventory. They WONT be able to sell your furniture or take your crops. This can let close friends help decorate eachother's houses. Your furniture inventory and the other player's house inventories will be seperate, meaning no one can steal your furniture.