Wotlk AND Mop

Hello,

If I want to play on both a WOTLK server and MOP server do I need to download the game twice, or is there something I can do to make the access simpler ?

I currently am playing the 5.4.8 MOP server here.

Thanks

To play in WotLK, you need WotLK client. To play MoP you need MoP client. So yes, you need two different clients.