I know the scale line width button is there, but I tend to forget about it -- until I have to go back and reset a line width that's scaled when I didn't want it to.

On the whole, I prefer that the function be left as it is now. If you're going to extend the scaling option to other attributes, they need to be set separately, either via buttons or a check list.

My first inclination is buttons, but a checklist would remind me to consider other attributes. You might also include a button or checkbox for turning "all attributes" on in one click.

The settings need to be sticky, though. I've learned to save or save as before doing any operation I can't back out of easily. It's infuriating to have to re-enter specs over and over again.