For instance, Ctrl-Space is a commonly accepted "code completion" shortcut in several IDEs (IntelliJ IDEA etc.), however on the system level it is "change input source (language)" shortcut. I don't need other languages while in IDEA, so can I have Ctrl-Space trigger code completion in IDEA without changing the global default?
PS: I know about How can I set up a keyboard shortcut for switching input source? but the solution there is to change the global default (which I don't want to do).