Thread: how to add more functionality to the "refine results" widget

how to add more functionality to the "refine results" widget

it currently has a slider to sort by distance(which I want removed), and in the "order by" drop down box, it has: relevance, alphabetical, newest, and random. some of these I find very silly and useless, and I would like to add price, for example, to the options. what is the name of this widget in the theme files(dashboard>appearance>editor)?