Īs an example, Mod+ L locks the current stage. Right-Shift+ L) Don't confuse this with Left-Shift, which will fire your engines! KSP 1.0.5 and earlier uses a different key, which can cause issues in some window managers when playing in windowed mode. 'MODIFIER_KEY' section of the settings.cfg file): In the table below, the default Mod key is mapped to the following keys (to use a different key, edit the entry in the 3 Key Bindings for QWERTY keyboard layoutīecause KSP can run on different operating systems the modifier key ( Mod) differs between them.