When attempting to edit a No Modify object if you try to delete the contents you first get a message that reads "Though permitted, deleting the contents may damage it, do you want to delete them." If you then choose OK it is followed by a second message, "Not permitted to edit this."
No one I have asked is aware of any way to delete the content from a no modify object. The "Though Permitted" message needs to be either removed or corrected.
Screen shots of error messages attached.