Dual screen displays - Ion

Well, a newcomer to the Ion I'm looking at what's displayed on the second screen and how I can change it. Changing the main display using the TAB key seems to be fine, but I seem to be 'stuck' on the second screen with a blind cue list as I recall (not in front of the desk at the moment but will be back there later).

So can I select what I see there, or is it a fixed default?

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