Keyboard Maestro has a very large number of actions. Each action describes what you want done. A macro includes of a sequence of actions.
See the List of Actions below, or the Keyboard Maestro Documentation for more information on actions and how to use them.
Keyboard Maestro also supports user-defined Actions, which are called “Plug In Actions”. See that link in the Documentation for details.
You may also export/import Actions to/from files. This may be useful when you have a complex Action that you have configured in a special way, that you wish to share with others, or save as a reference for yourself.
Keywords: Plugin, Plugins, Plug-In, User Actions