The default action can be a program or a plugin. If it is a program, just fill in the name of the program. If it is a plugin type "plugin" (without the quotes) instead. Then fill in the name of the plugin. To get a list of all available plugins, run keyTouch and go to the "Preferences" part. Select the plugin and click the "Information..." button to get a list of the functions of the selected plugin. After entering the plugins name in keytouch-editor, fill in the function name. Note that the name and function you fill in are case sensitive.