Additional filtering

Hi,

Does anyone know if it is possible to have any additional filterering than the feature list? For example the country like this site does: http://www.fjallraven.co.uk/storelocator/

(I have tried disabling the Viewport Marker Management and use a custom value as a contextual filter. That works when previewing the json feed from the view but not on the actual page...)

Thanks! /Mats