Each field Card, in a Form control has a `Required` property.

[![enter image description here][1]][1]

This is an example of how you can take advantage of this property in a child control within a card: 
1) Click on your control, for example, a label
2) Select a `Visible` property and use `Parent.Required` as a value:

[![enter image description here][2]][2]


  [1]: https://i.sstatic.net/Ygxkj.png
  [2]: https://i.sstatic.net/HBhvp.png