Originally Posted by
flyingdoc747
That's true! Thanks for that. As you can tell I'm new to this FO thing. I'm always used to being upgraded 5 days prior and simply picking the green seats at booking. I'll see what the website says if I change my seat to EC without checking in (simply by just clicking on change seat).
You can select the EC seats at T-24 without checking in. I have done it a few times when I wasn't sure if I was going to cancel or change the ticket yet.