You can enable dungeon creation with: /Dungeons create, If you want to cancel it, use /Dungeons cancel
Boss "Magnesify" is a default magnesify dungeons boss, I prefer you to a do not delete this boss, Becuse if you are using other plugin Bosses, there may have crash.
You can edit/create boss witth /Boss and you can edit your boss with /Boss manage
The documentation is not complicated and based on easy-way-understanding.
Dont forget, there is a 3 dungeon mode. Challange, Discovery Dungeons (Players can go anywhere on the map), And Level Based.
Create discovery dungeon: /Discoverydungeons setup
You can use help messages.
Good Luck.