You can use the Update From D-Tools Library feature in Project Editor to compare differences in fields for products and labor items in the project with those in D-Tools Library.
Use this when you want to see if any fields have changed in D-Tools Library after you downloaded and modified the products. This feature matches the Manufacturer and Model fields. This feature factors in any aliases for manufacturers as well as any phase mappings that you have set up.
Select the product(s) or labor item(s) that you want to update and click Library > Update From in the Catalog tab.
Use the Options button to choose which fields will be updated to your local product(s) from D-Tools Library.
After the update from D-Tools Library, the updated fields will only exist in the project. You may want to do an Update to Catalog if you wish to make the updates global for future use.
This feature is also available directly in your SI catalog.