There is an unmarked lines report that can be run follow the below steps to run this:
From the Main Menu go into Advanced Report Execution.
Search at the top for Unmarked Lines.
Select the report and fill in the parameters required.
Click on the ACCEPT to run.
If this report is not available for you, check in Advanced Report Creator that you have this report, and it might need adding to the group you are in.
If the report is still not showing, then please raise a new case online and reference the title of this article and we will add this on for you.