SirTawmis: So GoG has successfully got enough out of me, that my collection goes to a second page when I look at the Library. Is there a way to "Show All" or anything along those lines to show an entire collection and remove the need to go to a second page? It's not a big deal - just something I'd enabled if possible.
Not built in. Aside from what others have suggested, in Galaxy client there is no way to do anything about it at all presently other than hacking the client user interface and possibly the executable also. It's not clear if GOG ever intends to provide a better library user interface layout, selection of layouts, customizeable layout, or an option to disable pagination.
The pagination both in Galaxy and on the website is one of my personal biggest complaints about GOG's user interface design choices. If I had 10,000 games on GOG, I would want them to show up on one single page that is 30 feet long personally. Pages suck. I have a computer with a scrollbar, not a textbook.