Store Gestures as Bézier Paths

Storing gestures as Paths could be very useful to link it to several tools like Spray Tool, Tweak Tool and even why not Calligraphic Drawing Tool. The idea is that you could recall the Path Curve to apply it to any different tool you want, and manipulate its nodes afterwards to move interactively the tool effect along the path. The gesture curve would be stored in some layer of the active document and saved with it. You should be able also to move/cut/paste any Bézier curve to or from this layer, change this layer to a normal one etc. Storing pressure data would be of course a nice complement too !