That way is very painful in terms of workflow, one at a time searching for 150 items, which I already had to type in one at a time…
Perhaps the path of least resistance to this would be to add a custom Note field to each Menu item, and show this Note in the Section Manager (or, better still, in the Section Manager, Group/Sort the items by this Note, so I can show/hide Groups, in the same way we can show/hide Menu Sections).