Since the game has a search function but you need to see the item either through an NPC or an AH.
But in many cases when you are looking for item that is linked to you through the chat or some menu UI (like Timers) it's not possible to search through your inventory unless through the NPC or AH.
What I'm suggesting is to add the possibility to add an UI that you can input the name of the time be able to search for it in your inventory/retainers.