I have two RG. I need to send data from blue RG. I have a partial solution: when user press Add button, I set custom state with name of current cell (Red rectangle). Then I search for all items with this name and write in in temporary group. This way allow me to select same items from RG2 (blue rectangle). But this is only names, and I need a price and qty, email must looks like purchases list. I need to send to email data from RG2.