Hi @Win - You should be able to customize your Shuffle selection or select Shuffle All. It's often easiest to make your Shuffle selection through the Pandora app, either on your mobile device or web, and it should carry over to the Sonos app. Alternatively, you can do all of that and control your Sonos device directly from the Pandora app.
Looks like you're using an iOS device with a Plus subscription. You should be able to use the following steps below to select your stations for shuffle from the Pandora app.
PANDORA APP ON MOBILE:
To edit which stations are played during Shuffle:
Go to My Collection.
Pandora Plus Listeners: Swipe the Shuffle Stations icon bar at the top of your stations list from right to left. Then tap the Pencil that appears.
There, you can select or deselect which stations you'd like to appear in your Shuffle by Station or Genre. Don't forget to tap Save on the top right corner of your screen when done.
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