I think you are right, but I am not sure how to update this correctly. I appreciate any advice. Again, I am sure this is an error on my part somewhere.

Settings for the Parent Group:

Settings for the Repeating Group:

Settings for the checkbox:

This all works so I can select one checkbox, and it changes the icon as a result. But, it does not allow me to create a workflow that points to the value(s) in a specific cell of the Repeating Group. I only ever see Current Cell’s index as an option.