Battlefront II progress transfer.

My son recently purchased Battlefront II for his computer, and I play other EA games on my computer. The issue is that he bought Battlefront II on Steam, and my EA account is already synced with Steam. He has been playing Battlefront 2 since 2017 and wants to retain his progress. Is there a way to transfer his Battlefront 2 progress from my EA account to his EA account?