Yes, same here.
We want to allow our resellers to select payment per invoice but certainly don’t want all other customers to be able to use this method!
This is NEEDED BADLY!!!
Currently we tell these customers to create their carts and abandon them, then contact us, so we finish their order.
An ugly hack.
Especially, as you do not allow the shop owner to convert an abandoned cart into an actual order. So we have to copy everything by hand. SUCKS!!!