Adding a shortcut for "⌘+P" or most other letters (different than P) just works fine. However, if I want to register a shortcut for "⌘+¨" or "⌘+^" BetterTouchTool prohibits to register this as an input. It aborts and plays the sound for unacceptable input (system sound).
What can you suggest to record a shortcut for these keys? Is there a way to edit a file somewhere?