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Crafting stations enable players to easily craft specific items using crafting recipes, which require ingredients and conditions. When opening a crafting station, players can see information about the station recipes, including the recipe conditions (permissions, levels), ingredients and output, and navigate through them using the pagination system. You can make a player open a crafting station GUI by using the following command: /mi stations open {player} {station-id}.
You can check the list of available crafting stations by using /mi stations list.

Creating a new crafting station

Crafting stations are saved in the /MMOItems/crafting-stations folder. Every YML file in that folder corresponds to a crafting station, therefore you can create a crafting station by creating a new YML file. Be careful when choosing the file name, because it corresponds to the ID you will be using as reference when opening a GUI to a player via the command as explained previously.