Sharing a facebook thread

[shed driver]

I suppose there is an easy way, but I don't particularly want to cock things up. I've got two facebook groups, one of which I am an admin in and I have a post with over 250 replies made over several months. I want to copy the entire thread (as well as pictures and videos) to another group (I'm not admin in the second group).

I need to preserve the chronology of the replies and the attachments. Is this possible?

SD.