A couple of issues here.
Firstly when selecting/refining, the actions can still be carried out by finger when the Touch for Gestures setting is on.
Secondly, after a Selection is made, choosing duplicate, 'duplicates' the entire layer, not just the selection. It is possible to use Copy when the selection is made. This copies and pastes the selection.
To avoid confusion, possibly the Selection actions in Designer should mirror the actions in Photo?