Creating DME payment file after creating proposal not after payment run

I setup automatic payment process for our vendor payments and now I can create DME payment files using F110 successfully. But this file is created after payment run and when this file is created, also vendor and bank account postings have done . I want to create DME file but I don't want any account posting. I want to send DME file to our bank and when our bank send us a payment confirmation for payment orders in DME file, I want to do postings on system. So I want to create DME file after creating proposal, not after payment run. How can I do this?