Storage
The Storage screen is used to search for items that you put into storage, as you level up and get property and put things into storage chests it may become increasingly more complicated to find them later on, this is why this screen can be used to search for items you may have placed into a chest in a house you forgot existed many millenia ago.

You can view the entire Inventory of a chest, Teleport to that chest and even view a screen to show you the items your pets have in storage.