Yes, Loopio does keep track of how many times your Library Entries have been used, and will also display the Projects that the Entry has been used in, as well as the number of times the Entry has been copied.
Permissions Required: Stack, Level 1 permissions or higher are required to view the Times Used.
How Do I View The Times Used Feature?
This information is stored in your Library on the right of the Entry. When you access your Library you will see "Used X times" at the top right corner of each Entry.
You can then click on the number of times used, and this will display the number of times the Entry has been copied, as well as Projects where the Entry has been used. The list displays the Project name and the date the Project was created.
Note: This list will be ordered by the date the Projects were created, with the most recent in the first position.
You will also find this functionality while doing a Library Search within a Project, and when viewing Reviews on the Reviews > From Library screen:
Can I View The Entry From The Times Used?
Yes, you're able to select a Project from the list and it will open it in a separate browser tab with the Project Entry in focus View.
Permissions Required: Projects, Level 3 (Full Access) permission is required to select the Project.