How to find the "content #"

I am making a course and I am just wondering how to find the “content #”. I checked the library and there doesn’t seem to be any numbers attached to library items

I searched the forums for “content number” . Sorry if I failed to find an answer that is already out there somewhere.

Check the video at

What you have to do is to open the Library and go to the article in question and hover the cursor over the title of the item. You will then see the number at the bottom of the screen in the grey band that is there.