If your inventory is serialized you can display details such as the serial number, size, unit cost, supplier etc. by creating a view on the Inventory page.
1. Go to Inventory > View Inventory
2. Click on the Options button
3. Click on the Select Fields.. button
4. In the Serial Number Detail section, select any fields you want to show. (If you have any (S)Summary fields selected you will need to remove those as you can not display both Detail and Summary fields on the same view.)
5. Click OK until you are back at the Inventory page and then click on the Save View button to save your changes.
Here's more info on Creating Views