This weekend we’ll be flying BOD-CDG-U.S. I understand check-in will open at T-30 hours and we’ll have more seats to choose from on the short BOD-CDG flight. At that point can we also choose for a price seats in the first row of the Main Cabin of the TATL flight , or would that just open at T-30 of that flight? If the latter, do we need to check in to complete seat selection of the first flight, and confirm the seats in back that we have on the TATL? What’s involved if we then want to improve the seats at T-30 of the TATL: do we need to cancel check-in, and does that make for complications? How would people advise to approach this?