Aha! I understand now, Thanks! But what exactly is the difference on a daughter and a copy? And how do i make a daughter?
The difference is in what is inherited.A copy does not inherit the data from the blueprint you copied from, it creates duplicates, which in turn mean that the duplicated data will not be recognized as the same as the original. any changes to the original class will also not be inherited.
I child inherits the functions and data from the parent you made it from. think of it like you make a child of the the "Meat" class, and call it "Steak". "Steak" would inherit all of the properties of meat, it would also qualify as "meat" when doing a test for the kind of class something is. If you had made a copy then "Steak" would not also qualify at "Meat" in code.
To make a child you can drag a blueprint into your mod folder, and from the options you want to select the one for "Child" or you can right click a blueprint and select "Make Child" and then just move the newly created blueprint to your mod folder.