My specs : - Japanese Mac laptop keyboard (no numpad) with latest version of OS X, and most recent KSP build 1.1.2...
Although my / _ : ] [ @ ¥ keys work fine outside of KSP
they become unresponsive during KSP gameplay.
I've found a temporary solution of reassign them to secondary input keys in the settings menu but I'm seeking a more permanent solution as some mods use these same keys to activate their mods, and I don't think it's possible to reassign mod activation keys.
Any ideas?