When you are administering a Facebook page, is there a way to organize the messages in a discussion board thread so that they display in reverse chronological order?

I have an announcements thread in one of my groups, and so it's not really a conversation. It's a list of sporadic announcements to the group. As such I'd like the most recent message to appear on top, but I can't figure out how to change the order in which messages are displayed in a Facebook thread. The default is a bit like here on Fanpop: the oldest messages come first, and you have to scroll a LOT to get to the most recent messages. Is there a way to change this? If so, how?