Sorry if the title was long or unclear, but in plain word I want to create a complex contract with several numbered sections. Then have, somewhere within the document, a list of all the sections that I can select. Sections not selected would show their section number and a placeholder phrase.

Also, I'm looking to have some predetermined blanks throughout the document, some recurring some not, that will receive their information from my filling in a single source at the beginning of the document.

If this sounds like something previously posted, please point me in the right direction. I didn't even know the phrases to use to start my search. Thank you in advance.