"Corner point" toggle: key shortcut?

 From:  Jacob

Is there any way to toggle the "Corner Point" option on both Curve drawing tool and "Add Point" through a key shortcut? I find it extremely distracting to have to reach out and toggle it with the mouse.

I would love a "single shot" option for this particular toggle, as well, letting me to fire it off for just one point and have it spring back to the previous state afterwards, but I suspect this might make the UI more surprising.