I have 10 sections in a document with the first section being a summary of the other 9 sections. When I say summary I basically mean a copy and paste. Is there a way to have the summary section show the selected texts I want in the other 9 sections without the need to manually copy and paste? Also, if I edit the text in the other sections, it will automatically update (or I can manually update the field?) to show the text with the new changes.

Example:

1. Summary

I did not eat.
I starved.


I eat apples.
I ate apples.

2. Section 1

I did not eat.
qwer

3. Section 2

I starved.
asdf

4. Section 3

I eat apples.
zxcv

5. Section 4

I ate apples.
tyghbn


Any help would be appreciated, thanks.