[Android] scrolling the booklist with the group open?

Hopefully I'm not missing something obvious :-)

When I have a group "open", I'd like to ALSO be able to scroll the book list - see the attached screenshot. In this case the group list ("Series" in the example) will scroll, but the book list for the selected series will NOT scroll.

Is this possible (or is it a feature request?).

FYI, this is CC running on Android 6.0.1 on a Lenovo tablet

Thanks!

Dan

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