You can organize your things by adding items to your Trov categories. Details (useful information like serial numbers) and associated documents (like warranties or guarantees) are stored with your item in your Trov.
To access all of your items and details, to the My Trov section on the app. From here you can see all the different items that you own by category, plus access details about your things when you need them. To edit a detail, tap on the field you want to update.