Currently, the 'checkout fields'/'payment form fields', in an order form cannot be customized. Most of the fields can be edited, but for whatever reason the following fields were left without this option:
"Enter Coupon Code"
"Apply"
"Order Summary"
"Quantity"
"Order Total"
This creates a challenge for sub-accounts operating in non-English-speaking markets.
đź’ˇ Feature Request: Allow users to edit and translate these fields to match their business language and branding.