I'm always using the "go to top" button on the websites that I use, and I believe it would be great for this one, especially because we allow multiple nested quotes.
IMPORTANT: If you do not want to go through this entire tutorial, you can install a script called EAGER which is only a JavaScript file include install. It will add a 'scroll-to-top' button automatically. It has a couple other apps you can install with one-click! I really love Eager.
I'll add a tutorial so you don't need to do research if you'd like to implement it.