I'm trying to intersect 2 existing shapes in Photoshop (CS6). I've found tutorials that allow me to intersect at the time of putting the second shape down, but nothing that allows me to do so with shapes already in the document.
The reason I would like this is that I would like to "tweak" the position of the second shape, by nudging it, adjusting its size etc. The only way I can do this at the moment is by undoing to remove the second shape, and starting again.
Is there a way to intersect 2 shapes that are already in the page?
(In Photoshop, not Illustrator. I don't have access to Illustrator at the moment)