Positive Pay Files

I am setting up payment process profiles and adding setup for positive pay file. Our business will run multiple payment process requests (with same process profile)  per day. We dont want to transfer the pp file immediately to bank. We move it to EDI server, do the translation and then send it to bank only once per day.

If i create positive pay files per payment request, newer request will overwrite previoue pp file/s. Is there a solution for this? Instead of creating positive pay file per payment request, can i create them in batch mode at the end of the day (just like positive pay report in 11i)?