Is there some magical shortcut in photoshop that... Nov 28, 07, 11:50 p.m.

when I'm isolating something, say with the polygonal lasso tool, and i want to undo the last point, not the last selection, just the last point i added. Like ctrl-z but on a more atomic level... because its frustrating when i screw something up and most of my path selection goes to waste. Does that make sense?