That’s the one you want. What it does when a cell in the RG is clicked is up to the workflows you build along with it. You might need a custom state on the page as well.
- Build a workflow like when Group (cell) is clicked → set state to Current cell’s User’s unique_id
- Assuming your form is of type User, put a conditional on the form group to Search for User constrained with unique_id = page’s state
- The fields’ values could then be Parent group User’s field (first name, last name…)