Okay, so I finally found it. I'll post it here for anyone else that comes across this on google (and for myself a week from now when I have to figure it out all over again).
WITHIN the invoices "app" there is a separate menu on the left side that has settings that are not global to all of Square. In THERE there is a link for Business.
This is all super confusing because it's not clear at all that when you enter one of the sections from within the main dashboard you are essentially entering a separate "app" that is separate from all the other options in the main dashboard, all with their own unique settings.
Doubly problematic is this sub-menu really blends in, and looks like it is just the same menu within the main square dashboard as it has many of the same named options.
IE from the main square dashboard there is a menu on the left with an option for "Invoices"
From within the invoice "app" there is a menu on the left with an option for "Invoices"
Likewise they both have settings options. So when you read the square help and it says to go into settings, it's easy to go into settings from the main dashboard not knowing it is different. Then from within the invoice "app" that menu is in the same place, with again options like "invoices", "settings", etc and it is not intuitive it is a different menu.
Doubly confusing to get to your saved invoices from the main dashboard you have to go
left menu -> invoices, left menu -> invoices
It's all really terribly designed.
