This may be very basic, but I haven't been able to find it anywhere...

How do you assign custom room names in a shop? Is there a SHOP command I'm missing or is it something you get from a merchant? Or something else entirely?

>How do you assign custom room names in a shop? Is there a SHOP command I'm missing or is it something you get from a merchant? Or something else entirely?

the individual room names will change based on what you put in the shop to sell, otherwise you need a special merchant service to customize the room name, and when the shop changes hands, the room name customization does not remain.