Automate adding items to mirror column

It would be extremely helpful if the tasks in a mirror column could be added through automation rather than manual checkboxes. Right now, if I create a task on Project 1 board that is mirrored on Project Overview board, I have to manually add that task to the mirrored board by checking the box. This opens up the opportunity to miss new tasks. Ideally, you would be able to check “group of tasks” instead of an individual task.

See the tutorial starting at 2:00 to see that users have to manually click each item. I have this exact same use case but I don’t want to manually add a task on the overview board each time.
Connect boards & mirror columns | tutorials - YouTube