Studio is a child route of the journey, opened on top of it. The touch
shell's journey now renders that child in the split size class, where the
header offers Studio beside the menu, as the desktop's bar does. The editor
is the desktop's: tapping a panel, adding an element and dragging it with a
finger work through its pointer events. On the phone and in a single pane
the journey stays alone, whatever the address says, and offers no Studio.
Maurice
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