Filtering according to stars

I cannot find a way to filter by stars or popularity.

Having a filter for this would make I much more convenient to find crags/boulders that are suitable, grade and then stars and popularity.

The information exists so would be adding filters to the search. Or more complex, adding a list feature to the filter results so that a list of suitable routes is displayed. This would give a quick overview of what interesting routes there are in an area.