With the glossary, the new feature in 0.43, you can define little bits of text that plug into documents you edit with Little Facebook Editor.
Choose Glossary from the File menu.
A dialog appears. Enter something like what I've entered in this screen shot.
I've defined a value called name, which has the value DAVE. And values called status and location. I can then refer to them in documents by including them in angle-braces and percent signs, like this: <%name%>.
Here's a screen shot of a post I created this way.
And here's what shows up in Facebook.
The glossary is also a feature in Fargo and basically every CMS I've made going back to the early CMSes in Frontier in the mid-90s. It's an incredibly useful feature. It saves me from having to enter URLs of pages I point to frequently, and makes it easy to change the URLs in the content, if they should change. Note that because Facebook does not at this time support linking in posts, you won't be able to use it that way, yet.