It is not possible to merge the progress of two or more games into one.
Troubleshooting steps for error "Game Initialization Failed" when launching a game
This article explains the process of speaking to a Game Master (GM).
Enabling the Command Key + Click combination on Mac systems.
Use these steps to repair file permission settings for the game folder and all enclosed files/folders.
Trying to load the game returns error "Direct3D failed to initialize"
Follow these steps to return your game client’s language settings to default.
This error occurs when the in-game shop is currently closed.
Troubleshooting steps to help you connect to StarCraft II
Black Screen when starting StarCraft II.