It would be nice to have a Button to be able to open/close a shop in the editor
maybe a button with green wool that shows the shop is opened
and when you click on it the shop should be closed and the green whool changes to a red wool.

When a shop is closed and you click it then you should get a meassage in shop like "This shop is currently closed"

This way we dont need to remove shopkeepers all time when we want to do changes in the shop and close them until the changes are done.