Facebook messaging - how do I add a shortcut?

[metroplex]

My Droid2 has a separate Facebook messaging "app" that works much better for sending/receiving Facebook messages than via the Facebook app. However, I cannot figure out how to add a shortcut onto one of the desktops. I can add one for Email/Gmail, Text Messages, and the Messaging app (which then opens up to reveal Universal Inbox, Text Messaging, and Facebook messaging).

How do I directly access the Facebook messaging via a shortcut?