Toggle visual visibility on and off in Mobile Layout view

The new Mobile layout canvas is excellent, but when you work with both hidden and visible bookmarks on the same report page, the only way to build the hidden layer is to exit mobile view, unhide all the visuals in the selection pane, and then build the hidden layer. Then you have to exit Mobile view again to rehide the layer, before you can build the visible layer.
The eyeball on the visual pane is helpful to identify which visuals you need to work with first, but it would be even more helpful to have a Show Hidden option within the Mobile View, so you could easily toggle between the two states during the canvas build.