Offline processing no copy

Hi Folks.
I’ve been fiddling with direct offline processing.
But everytime I try make it permanent, Nuendo makes a copy of the file.
Is there anyway to avoid that, or is there another way to pemanently apply processing to multiple files. No, I dont want to export them. It is many looooong files.

DOP is non destructive but wavelab work’s directly on the original permanently altering it.

Thanks. Dont have wavelab.

Any specific reason for making it permanent as DOP was built ground up so that you don’t have to render or worry about processing hits or slowdowns.

I have my reasons. And protools can do it. But I really wanted to do it in Nuendo.