There are existing checkboxes all throughout JB modules, yet, very few of them can be default checked or unchecked. It may not seem like a big deal, but small things like this, requiring a box is checked every single time a transaction is made, can cause HUGE problems. Features should have a LOT more default control. It would be nice to be able to control them for both systemwide and by profile.
It would also be nice to have the Allow Discount box to be unchecked by default in Vendor Invoices entry