So I was just telling you how to install them into KM. The link I pointed you to also has a section entitled How to Install. I don't know anything about actually using the plugin actions themselves, so - once you've installed them, you can use them by following the documentation given by the author in the first post of this thread.
If you are really that new to KM you need to follow the tutorial information provided within KM itself and also the getting started advice given in the first thread in the forum