Related posts on blog?

Anyone know if there’s a way to get “related posts” on a blog in rapidweaver? It’s easy to within Wordpress using a plug-in but I would really like to do it in Rapidweaver. Here’s a link to my current wordpress website that I want to migrate to Rapidweaver, it shows what I mean about the related posts idea:

Thanks in anticipation.

There’s no way to do this in the built-in blog I’m afraid!