This should be done by adding two commands :

• /zh sell (<price>) (-i <horseID>) (-t <playerName>)
• /zh buy (-i <horseID>) (-t <playerName>)

Both commands should allow the player to target a horse by using the three different methods : mount, favorite id, command flags.

When a player set a horse on sale, its name should be suffixed by a color-independent message displaying the price (with units) of that horse.

When no price is provided in the sell command, the horse should be withdrawn from sale.

When a player buy a horse, its inventory remains and the money is transferred from the buyer to the owner (no matter if he is the seller or not).

When a player is ejected from a locked horse on sale, a message should suggest him to buy it using a pre-filled command.

Implemented by 3967271