There's no setting. FFCore should automatically overwrite the file (as long as it is not locked by another process)
Scenerio: I drop an imposed print ready file into my hotfolder to press. I get interupted and can't remember if I dropped the print pdf into the hotfolder to press.
Question: Is there any way or setting, so that the file that I sent down the second time overwrites the file already there? Or can Core somehow flag it or send an email stating that there is a duplicate file?