Question about Play anywhere and transferring data

Recently downloaded FH4 for the PC after playing Xbox since launch and I want to know how to transfer my save across?
I let the game sync originally when it first booted up but i had to play the game as if i started a new save, but my account stats are there such as roads driven, Personal bests etc. Its as if ive kept all my account progress but none of the content.
So far i’ve been playing for a few hours and i have no clue how to play with all my Xbox stats and all the rest, can someone please help point me in the right direction