I don't want to discourage anyone who's going to apply under CEC, but my understanding is FSW and CEC are both Express Entry (EE). If you plan to go the normal way, you'd have to withdraw the FSW, go back to the pool of candidates, update your file to include Canadian Experience, get another ITA then apply! Otherwise you will have to create a new GCkey account and open a new Express Entry application, but is this fine?? I hope anyone who got clarification from IRCC has stressed on the fact that he will be opening a new account and have two express entry applications in parallel. I was told by an IRCC agent that you can have multiple different applications as long as you're welling to pay the whole fees and not expecting to get full refund on the other ones. That was when I asked him about TR to PR program in parallel to EE. BTW, I ended up applying to TR to PR in the last minute, no AOR or any news about that one as well.