I have a suggestion of allowing adding extra items from your inventory to the store of store permit while the store is already set. Normally when setting this kind of store, you cannot add more items unless you close and reopen the shop. It can be tedious if you are having many items on sale, and will have to relist them all again whenever you need to up new items. What is needed here is a button on the shop window to bring the shop back to its "pre-open state" so that you can list more items. Afterward, we can reclick "Open Store" to bring the store to "Open state" again and sell our items!
