Extract the AdditionalFeatures folder to [your server]/plugins/Skript/scripts
Restart Server or use command /skript reload \AdditionalFeatures
That's it, you shouldn't see any errors if all went correctly. If you do, please contact me
How to leave out features/mechanics
Maybe you don't want all the features this adds. Well, we've thought of that.
Every feature or mechanic is written in its own Skript file.
So all you have to do is find the ones you don't want, and delete them.