If you have your CC settings on the cloud, then the same will be synced back to Flash CC 2014 when you choose to sync cloud settings for the very first time in CC 2014.
Please note that the user ID in use should be same across Flash CC and Flash CC2014 for this to work.
How do I confirm whether my CC settings are on the cloud or not?
I've synced settings in CC, but when I then do sync in CC2014, nothing comes through.
Right! That's where I went wrong. I reinstalled and clicked sync cloud this time and it's worked. Thanks.