             width:  if @local.compare_to == '' then '22%' else '38%'
             verticalAlign: 'top'
             marginLeft: '2%'
+
+          INPUT 
+            style: 
+              width: '100%'
+            placeholder: 'Filter to subs with customization containing...'
+            ref: 'customization_filter'
+            type: 'text'
+            defaultValue: ''
+            onKeyUp: (e) => 
+              @local.customization_filter = @refs.customization_filter.getDOMNode().value
+              save @local
 
           DIV 
             style: 

      return SPAN null

    @local.current_value ||= subdomain.customizations

    DIV 
      style: 

                @local.compare_to = ev.target.value 
                save @local

              for sub, id of sub_ids when @local.customization_filter.length == 0 || id.toLowerCase().indexOf(@local.customization_filter.toLowerCase()) > -1
                OPTION 
                  value: sub
                  sub 
