+ static void map_some_state (const char* group, const char* action, bool (ARDOUR::Configuration::*get)() const);
+ static void toggle_config_state (const char* group, const char* action, bool (ARDOUR::Configuration::*set)(bool), bool (ARDOUR::Configuration::*get)(void) const);
+ static void toggle_config_state (const char* group, const char* action, sigc::slot<void> theSlot);
+