Use this toRemove all marks in the document
Before invokingA document must be open to use this option.
Menu pathEdit > Bookmarks and Marks > Remove All Marks
Command nameMMarkRemoveAll
Accelerator keyL (from the main menu: Alt+E > B > L)
Keyboard shortcutCtrl+K, Shift+Ctrl+F2
Options on parent menu (Bookmarks and Marks+)Create/Clear Bookmark, Go to Next Bookmark, Go to Previous Bookmark, Clear All Bookmarks, Bookmark Window, Mark Selection, Remove Marks, Remove All Marks