In the Treasure! sheet, you already know that you can select the List filter to jump to a specific category of items.
But there is another way to quickly find a items, by using the keywords that have been 'added' to the item list!
Example: Instead of changing the filter to "potion" and then selecting a "potion of Fly", you can just type Potion as an Item and press enter. The unit value will be zero. Now, click again on this Potion keyword, and you'll see a list of all potions below it!
The available keywords are: Amulet, Bag, Belt, Boots, Bracers, Cloak, Elixir, Gloves, Headband, Helm, Horn, Oil, Potion, Ring of, Robe, Rod, Shield, Staff, Tome, Wand, Weapon
Note that if you type something that turns up as a Title, then it is not a keyword that has been defined.