anchor.diff:      $project_select.multiselect({selectedList: 4});
       $project_select.on('change', updateFilters);
   
  -    $environment_select.multiselect({selectedList: 3});
  +    $environment_select.multiselect({selectedList: 4});
       $environment_select.on('change', updateFilters);
   
       $.fn.dataTableExt.afnFiltering.push(function(oSettings, aData, iDataIndex) {
  
positive.code:       <% end %>
      </select>
      <select id="environment_select" multiple>
        <% ['production','staging','master'].each do |env| %>
          <option value="<%= env %>"<%= 'selected="selected"' if selected_environments.include?(env) %>><%=env.capitalize%></option>
        <% end %>
      </select>
      <label>
  
negative.code:       var project_ids = $project_select.val() || [];
        var environment_ids = $environment_select.val() || [];
  
        if (project_ids.length < 1) {
          $update_status.text("Nothing to do.");
          window.history.replaceState(null, "AirMonitor", "/");
          return;
  