Member Rara Avis
It was only showing you twenty, Dawn, because that's what you had it set to show. I changed it to 100 for you.
I suspect you were changing the drop-down option and expecting that to be enough. That's a fair assumption, because that's the way it works in a lot of other places. But, uh, not in the Library. The Library pages can get very big, so we don't want to make a lot of little changes and reload the page for every one. So, after making the changes you want, you need to scroll down to the bottom of the page and find the "Update Poets" button. Click that and the changes you've set in place will actually take place.