Move duplicate of a selection with two-finger modifier

[dantaylr]

I would love the two-finger duplicate modifier to work when moving a selection within the same layer inside the selection persona.
 

I commonly like to move copies of image parts within a single pixel layer. A good example is if I was creating a building face. I’d select a window, drag a copy, and then paint over the imperfections after moving it within a single layer. The current workaround is lengthy. I need to select the area I want to copy, switch to the photo persona, hit “duplicate”, move the copy, and then merge the layers together.