Combining crowd tools

[Brainkite]

I 'm trying to combine crowd-semantic-segmentation and crowd-polyline and it seems that aws GT will take only one of these. Is it possible to actually combine those crowd elements? and how?

Here's my custom HTML task code:

<script src="https://assets.crowd.aws/crowd-html-elements.js"></script>

<crowd-form>
  <crowd-semantic-segmentation
    name="annotatedResult"
    src="{{ task.input.taskObject | grant_read_access }}"
    header="Draw contours or Powerline pylons, isolators, cars, humans"
    labels="['High-Vegetation', 'Cars', 'Human', 'Road']"
  >
    <full-instructions header="Segmentation Instructions">
      <ol>
          <li><strong>Read</strong> the task carefully and inspect the image.</li>
          <li><strong>Read</strong> the options and review the examples provided to understand more about the labels.</li>
          <li><strong>Choose</strong> the appropriate label that best suits the image.</li>
      </ol>
    </full-instructions>

    <short-instructions>
      <p>Use the tools to label the requested items in the image</p>
    </short-instructions>
  </crowd-semantic-segmentation>
  
    <crowd-polyline
    name="crowdPolyline"
    src="{{ task.input.taskObject | grant_read_access }}"
    header="Add header here to describe the task"
    labels="['car','pedestrian','street car']"
  >
    <full-instructions>
        <p>Read the task carefully and inspect the image.</p>
        <p>Choose the appropriate label that best suits the image.</p>
        <p>Draw a polyline around the boundaries of all objects
        that the label applies to.</p>
        <p>Use the <b>Enter</b> key to complete a polyline.</p>
        <p>Make sure that the polyline fits tightly around the boundary
        of the object.</p>
    </full-instructions>

    <short-instructions>
        <p>Read the task carefully and inspect the image.</p>
        <p>Review the tool guide to learn how to use the polyline tool.</p>
        <p>Choose the appropriate label that best suits the image.</p>
        <p>To draw a polyline, select a label that applies to an object of interest 
            and add a single point to the photo by clicking on that point. Continue to 
            draw the polyline around the object by adding additional points
            around the object boundary.</p>
        <p>After you place the final point on the polyline, press <b>Enter</b> on your
        keyboard to complete the polyline.</p>

    </short-instructions>
  </crowd-polyline>
  
</crowd-form>