Right-click anywhere in the New Item field to bring up a small pop-up menu: within that menu, go to 'Create Blueprint,' and select 'Module' (this is unless you wish to create an item usable in any module: if you want to do that, select 'Global' instead). To create a new item, click on the 'Items' tab in the Blueprint Menu to bring up all of the items in the game. Since equippable and unequippable items can have very different effects, this tutorial will walk you through making both types, creating a sample of each for use in the Lannon Farm module. Unequippable items can provide a passive effect when held in one's inventory, can be disposable (such as potions or scrolls), can be used in crafting (such as raw materials), or simply take up space (such as a quest item). Unequippable objects are items that are never actually placed on a character's body - they never take up an armor or weapon slot - and may or may not have an effect. Equippable items include jewelry, weapons, armor - things that a character can conceivably place upon their body or wield in their hands. Items fall into two categories: equippable and unequippable. All armors, all weapons, all potions, all quest items - all the useful things that populate a world, from the magic sword in the troll's lair to the gold coins you sell it to the merchant for. Anything in the game (or your module, for example) that can be picked up and used in some fashion - that is an item.

Neverwinter nights crafting magic items