       for backend in @config.metric[@params.metric].backend
         if backend.dataDownload && !@params.downloadBackendSelected
           @params.downloadBackendSelected = backend.name
+      @ui.storeParams()
 
     # get used profiles
     profiles = []

    return if @params.metric is metric
    @params.metric = metric
    App.Event.trigger( 'ui:report:rerender' )

  selectProfile: (e) =>
    profile_id = $(e.target).val()

      delete @params.profileSelected[key]
    @params.profileSelected[profile_id] = true
    App.Event.trigger( 'ui:report:rerender' )
    @ui.storeParams()

  selectBackend: (e) =>
    backend = $(e.target).val()
