Is your feature request related to a problem? Please describe.

Some servers don't want spawned items, so they only want the stock that is in the shop.

Describe the solution you'd like

An option in the config, when a you place an Admin Shop sign on a chest, that the stock depends on what's inside the chest.

configuration LIMITED-ADMIN-STOCK: true or false

if there is no chest at admin shop -> infinite
with chest -> check stock