Inventory

Inventory is a collection of Items that the game displays in a grid. These include: Each slot in an Inventory can only hold one type of Item. Each Item has a maximum stack size.
 * Player's Airship's cargo, the size of which depends on the Airship in question. This is the primary way for the player to transport Items for sale or otherwise. Items get arranged/stacked whenever the player closes their cargo UI.
 * Constructable Storage Building's inventory, the size of which depends on its upgrade level. Items used by Category:Production buildings and Category:Gathering buildings on that Island are taken and placed here. The player can also freely take or deposit Items.
 * Trade Post Items for sale. The player can select items from this Inventory for purchase. Both Items to purchase and sell have two temporary Inventory spaces. These limit how many Items can be sold at a time (in contrast, Trade Posts never sell more items that this limit).
 * Bazaar Items for auction. This Inventory's size limits how many Items can be sold at the Bazaar at a time.