> Add them in as an option under the line tool. Click the button and
> you go into guideline edit mode. Add and remove guidelines as
> you wish. Click DONE to turn guideline mode off. If you want to
> edit the guidelines or add new ones, just go back into edit mode.

This sounds good for adding new ones, but not as good for the edit/remove part - that part just doesn't seem to quite fit into that area organizationally speaking. I mean that there isn't any other functionality under the "Draw curve" section that is currently about editing or deleting curves, just only about drawing new ones...

- Michael