Option to disable menu when creating it

Hi all,

To keep the navigation consistent, I make use of disabled menu items. From a usability point of view, the process of creating a disabled menu item is not strait forward at all.

Here are the steps:
- create a node (a page for example)
- in the node/add/page form set the menu title and select the parent item
- go to admin/build/menu and then disable the menu.

It would be great if the menu item could be disabled (with a checkbox for example) in the node/add/ form.

How would I achieve that?

Thanks much!