You can assign a Mark, Issue Code, or Comment to a group of documents using the Work Product Palette under Tools:
Click on a group of documents in the Current Docs grid screen, then click on the Work Product Palette button to open the Work Product Palette dialog box:
Check the box for the appropriate Mark and Issue Codes or add a Comment and click Apply.
You can remove Marks from all selected documents by selecting the Unmark check box.
To delete certain Issues Codes from all selected documents, select the Delete radio button, then check the Issue Codes that you want to remove.