anchor.diff:          </c:set>
           <props:multilineProperty name="${params.nugetPackageSourcesKey}" className="longField" expanded="true"
                                    cols="60" rows="3" linkTitle="Sources" note="${note}"/>
  +        <bs:projectData type="NuGetFeedUrls" sourceFieldId="buildTypeId"
  +                        targetFieldId="${params.nugetPackageSourcesKey}" popupTitle="Select TeamCity NuGet feeds"/>
           <span class="error" id="error_${params.nugetPackageSourcesKey}"></span>
       </td>
   </tr>
  
positive.code: 
  <script type="text/javascript">
    BS.DotnetParametersForm.updateElements();
  </script>
negative.code:     </l:settingsGroup>
  </tbody>
  
  <button id="buildTypeId" style="display: none"></button>
  
  <tbody>
  
  <c:if test="${params.experimentalMode == true}">
  