You can now make a list out of your potion-effects, and give the players multiple potion-effects per set at once! It works the same, you'll just have to make a list out of the
potion section (example above / on overview page)
You can choose to only apply the lore (which can even be used to apply more attributes when the player wears the set!). This can be done by fully removing the list off that set as a whole, like this:
I'd recommend re-checking your configuration file(s) and comparing it to the one(s) on the overview page may you experience issues. Feel free to request assistance here! I really hope I didn't forget to mention something