Recently I created a SharePoint Site Collection using Publishing Site template. I noticed that the Generate file plan report link was missing from the Document Library Setting under Permission and Management menu. I found a lot of article describing the Generate File Plan Report feature in SharePoint 2010 but hardly find any article explains how to enable it. I guess that link is not included in the template for a reason. Anyway, here are the steps to restore that link.
1. Log in to the Site as a Site Collection Administrator
2. Go to Site Actions, Site Setting, select the Site collection features under the Site Collection Administration
3. Look for Reporting and hit on the Activate button next to it.
4. Navigate back to Library Setting and the Generate file plan report link should be there
If you have a better suggestion, please share it.