How to duplicate an EI Item
If you'd like to have another copy of your EI Item, for example, to create different classes of the same Item, such as [Legendary], [Epic], etc, and don't want to create each item from 0, just having a copy
- Create the first EI Item with /ei create and add all the stuff
 - Once it is ready, and you want it to be the template for the another ones, go to plugins/ExecutableItems/items/<here>.yml
 - Search your item, and copy + paste, and change the id name for the id you want
 - Then save everything and inside minecraft type /ei reload
 
Now you have the original item + the copy you created.