Shortcodes and Protecting PART of a Page/Post

I see on the Memberships listing there are shortcodes for each level I've created. They look like this: [ms-protect-content id="1234"]
*1234 is not a real level on my site

How do I use this shortcode?

Can I bracket info on a page or post with [ms-protect-content id="1234"] and only make this content available to members at this level? [/ms-protect-content] ?

If that's not how you would do that type of thing, then how would you do it?