tfs - How to use Azure Devops Extension built-in functionalities inside ControlContribution? - Stack Overflow

Currently I'm using a third party extension called tiny mce, in my azure devops extension template for an azure devops workItem as follows -

  <Section>
    <Group Label="Description Test (tinyMce)">
      <ControlContribution Id="test.Tiny-editor">
         <Inputs>
            <Input Id="FieldName" Value="System.Description" />
        </Inputs>
      </ControlContribution>
    </Group>
    <Group Label="Description Test (Classic)">
        <Control Type="HtmlFieldControl" FieldName="System.Description" Visible="false" />
    </Group>
  </Section>

description image

As you can see in above image, the native classic azure devops provided description have both built-in maximize and collapse buttons enabled, but for the tiny mce which I'm using as ControlContribution, collapse is enabled, but there is no Maximize option.

How to provide this built-in Maximize button for ControlContribution?

Thanks.

Tried adding HtmlFieldControl, for ControlContribution but got some errors, when tried to upload this process template