Need to be able to add more yml files?

I have the Random Box plugin on my server and so I use it for dungeon loot... but the only problem is that I can't add more yml files to the boxes file so I can't make more boxes. I'm stuck with having just 1 box since I can't seem to add in any yml files to make new ones... Any solutions to this? I really want to add more boxes since I have more ideas for things., but it requires a separate yml file for each box.

Sadly there isn't a command to do so... I guess if it's impossible, then this thread can be closed...