How do I add the sort by drop down next to the category dropdown?

Take a look at the category dropdown on the main shop page of this site I'm working on:

And look at the dynamically generated dropdowns at the top of this category page:

The dropdown I added on the main shop page was using the shortcode [mp_dropdown_categories], is there a way to add to that shortcode to get the sort by box as well?

Thanks in advance!