This works for me but there is a Bug - if you enter a new line at the bottom of a group the automation works - if you want to add a new line at the top - (so click new item (blue button at the top)) it does not work -does not find the connection automatically - you have to search manually .
This works great for our work flows - I have used it to connect the shipping board to the credit status board - it automatically now shows if the customer is on credit hold etc