Show the source "+" target" when Shift+ALT+Dragging the destination target

When using the clone stamp tool, we can use shift+alt and drag to keep the same origin point, but change the destination, which is especially useful in aligned mode (as it is how it behaves without the shorctut in non-aligned mode).

I find that this would be easier to do if we could see the spurce " +" reticulum while Shift+Alt+Holding.