New Post: Change Sort options in product catalouge

ManagerMenuDefault.xml contains all the default store settings and templates that you can find in the Back Office Settings and Templates tabs.

The dropdown is in listheader.text

Edit and save it there.

Check this article for further info - Reset and upgrade your configuration
https://nbstore.codeplex.com/wikipage?title=Reset%20and%20upgrade%20your%20configuration&referringTitle=Documentation

Regards
Rob