Due to financial constraints, I've needed to sell my 960 GB SSD and move to a smaller SSD + HDD optibay setup. The HDD is formatted with exFAT so I can read from and write to the drive with both OS X and Windows 7. I've moved my Steam library to the HDD so I only need to download games once in order to play them on both operating systems. I also have several Mac App Store games. Naturally, OS X will install them to the SSD. I want them on the HDD. Is it as simple as letting the game download/install, then copying the application to the other drive, or do I need to do more?