Ok, I've been working on getting a UI to control this stuff for exporting to AI and PDF formats.

This is what I'm currently going to try:



Scale can be either "Fit to page" or "Preserve units".

If you push "Line style options", then another dialog will pop up that will let you control how the different kinds of lines are written for line width, color, and if they should go on a specific layer. You can pick "From style" if you want the color or layer to come from its style assignment, or "Custom" if you want to override that with a specific color or layer instead.




Please let me know if anything important looks like it is missing.

Thanks,
- Michael