I am looking to find where I can go in the config to change the Boss Bar GUI to the default
I can see it on the enchantment table as an option, is there a way to set this as the default for all players?

Try /mhelp boss bar

Thanks, I tried playing with this, but it quickly got over my head, I'll just direct the users to use an enchantment table to change the position of the Bar.
Thanks anyway!

The mhelp command should have given you an article on on the "Wand GUI" with the specific command you need to run to do exactly what you're asking

mconfig config wand_slots.gui.default_slotted gui_bossbar

Oh thank you, I didn't realize they were links in the chat window, Thank you again!