The Checklist menu only appears when the Checklist Manager is the active tab.
The Checklist menu has the following items:
New. Creates a new checklist under Personal Checklists or Project Checklists.
Add. Adds an existing checklist under Personal Checklists or Project Checklists.
Save as. Saves the selected checklist using another name.
Rename. Renames the selected checklist.
Remove. Removes the selected checklist for the personal or project checklists. It does not delete the checklist from disk.