Hi kbeard,
If you set the Menu Breakpoint Width to something really large like 4000 then it will always show up on your site, regardless of screen size/device etc.
In addition to this, don't put anything in the CSS of Menu to Hide option so that your current menu remains.
You can then create a seperate menu in your admin that has every link on your site and use this in the menu to use drop down option in the Responsive Menu admin area.
I'm not sure how you would use my plugin to make it look as the Adobe one does but it could be possible with a lot of custom CSS and maybe jQuery.
Let me know how you get on though with the project, it looks exciting!
Many thanks
Peter