Feature Request: Sort by Featured, Then Price

[Parsimonious]

Is it possible to add a mixed sorting option? I'd like to show featured products first, sorted by price, and then all the other products also sorted by price.
We use featured to tag all the products we physically have displayed in store, so I'd like them to show first. I can force that to happen when the sort order is product name, by putting a "-" in front of the name off all my featured products. However, I notice a lot of users re-sort by price (which I also tend to do when on a website). I think a "featured, then price" sort option would be very useful.