Inserting another complete document into my document

I'm still not getting what you are getting. .
Verion1
Section 1:
My headers
--> My Content
Section 2:
Joe's header
-->Joe's content
Section 3:
My Headers
--> My Content

Version 2
When I paste Joe's document into my document, his headers override mine.

I tried tables but when I select Joe's document and try to paste into a table, it says "can's paste selection into tables".

In your screenshot, it looks like you just modified the headers for each section. Is that what you did? Manually paste Joe's header, after my header?  If you did, I'll look into that, but I'm not sure that's what I'm after. This way, it still looks like the included content is mine.  I want to attribute all of Joe's work as his, and just make it look like an included document.

One thing that almost worked, is by pasting into my document as an image.  But I won't want to use images.  I can't be the first one to ever want to do this.

Update:  Actually modifying the header manually might be a good solution. I just tried it, and it works well.

Oh wait, I just noticed that modifying the header, modified all headers, but I think that's an easy fix, if I can apply it only to section 2.  When I click on headers it says Secton 2, but also "Same as Previous"

Resolved: I just changed the section to unclick the Same as Previous option.

Thanks