Any way to group items and duplicate the? Like if I made as sword, without going through the whole process of making a new one, is there a way to duplicate the to make it simpler?

No, you can't duplicate whole groups of objects.

You can individually duplicate each object and reconstruct whatever you're trying to make (i.e. sword), and you can actually do that via a cute little "duplicate" button on the main obj window

Thanks, did it this way instead,