can TBH15 show "onion skin on marked drawings" in camera view, not just drawing view?

is there a way to use the “onion skin on marked drawings” feature in the camera view? currently it only seems to work in the drawing view.

this is one of the interface confusions in toon boom; the buttons appear to be available, but don’t function, like the art layer eyeball in the camera view should be ghosted out if it’s not going to work without the ‘current drawing on top’ button also selected.