I understand what you are asking for, but that goes against the design philosophy of manager which is not to hide things behind menus, just to keep things simple and straight forward. And to be honest it’s working well.
Having said that, you are right. The check boxes for invoices and receipts have started to border on too much. The developer realizes this and I think he will come up with a solution that respects the design philosophy.
He provided no timeline for this, so we will have to live with this for a while and use whatever tricks to make our lives easier.