I went through the search function and couldn't find anything on this.

The way I have my XM setup I have favorites set for SAT 1, 2 and 3.

When I press the Audio button I get a screen which shows 6 favorites for whatever tuner setting I am on - so for SAT 1, I will see my pop music favorites, SAT 2 favorites for other genres, and SAT 3 is my news and sports favorites.

However there are 2 views which are normal on European cars which I can't find which would make tuning easy:
1) A screen where I can scroll through all the stations in numerical order and see the station names (realize it may involve scrolling through several screens)
2) A screen where I can scroll through all the stations in numerical order and see what song is playing.

This would make it easier to browse and channel flick.

Do these features exist on the GS with the Lexus OEM XM tuner unit?

 

in a word.... no

think of it instead as a game of roulette every time you spin tuner dial