Bob - Yes, Libby does love those "patio platforms". I got them at my local bird store, but think you can get them on line too. They come in two sizes. I do hang toys from them too so it gives extra hanging spots, especially for lower down in her cage.
My Parrotlet, Angelina has them too, plus I've hung two or three of them on the outside of her cage and there are toys hanging from them also. They play in there, so this gives them extra places to climb on and play.
I think they add extra interesting areas for the birds. They're very handy and hold up well.
That website is "Avian Advantage" -- Here's a link:
It's a little hard to learn how to navigate around, but easy once you get the hang of it. If you scroll most of the way down the page above, you'll see "buyer member resources" and a link to "vendor ads, discounts and codes" . You won't be able to look at that page until you join the forum and then become a lifetime member, but that's where you can see the various participating vendors, their discounts and codes for the discounts. I think maybe it changes from month to month, not sure about that yet. I figured for $10 bucks for a lifetime membership, why not give it a try. They have lots of vendors I recognize too.
JoAnne, Libby (2/10),Angelina (12/07), and Charley (11/10)
Also owned by Essie,Minnie & Oscar