I've never looked into that but I would see a few difficulties within trying to do this since the header / footer are universal.
What FTL file are you trying to accomplish this with?
Thanks for response. I have gone ahead by suppressing header/ footer through css. Simple and effective.
P.S: So also check out https://community.jivesoftware.com/message/1510546#1510546 for alternate methods.
Thanks and Regards,