How do I navigate between grouped cards?

To navigate from a card to its parent

1. Click the card to see its card back
2. Click the parent card's name under the Parent label near the top of the card
3. A dialog will open showing the parent card in the context of its column
4. Click the parent card in this dialog to navigate to the card back of the parent card

To navigate from a card to its children

1. Click the card to see its card back
2. The children will appear under a bold Children heading, under the card description
3. Click any child to navigate to its card back