Classiera, classiads

I need to know about Classiera and/or classiads themes. Do they both or any support the following:

  • Allows to add country/city field on top to filter Ads [for example if i chose USA then it must show everything related to USA or if i chose Country:USA and city:New York then filter accordingly until i change them to a different one?
  • does it allow to change the currency according to the chosen country?
  • i want to put prices in US$ and then I want to see the currency conversion according to the filtered country?

Please assist me or provide me any online chat link to ask these things!