Owning BOS/BOM & BOK with a different email address

[453=SGII_Wotan]

Hi

 

I own BOS and BOM via steam which has my current E mail address. However this(IL2 Sturmovik) website still uses my old email address for my username, I have requested the change, however if I buy BOK using my new Email would this effect its activation in my current installation as I already have the game (BOM/BOK) or do I need the same email address to activate  BOK with my current installation