Hi Chris,
For your reference, this page contains links to all the product doc for R20. You can bookmark it in your browser for easy access upon future visits:
Product Documentation
Also, each product has a persistent URL that you can use to access the documentation directly w/o using the drop-down menu. The persistent URL is also shown in this topic.
For all products, use the PDF button at the top of the page to download all content for that product. For example:
If you need further assistance, please let me know.
Thanks, Cindy Hamm.
Principal Information Engineer