First off, the Choices theme is the best damned theme I've ever seen. Bar none!
Next, I was hoping to either figure out how to do this, or if it's not possible, have it added as a feature:
I love the columns element in the template builder, but it's missing one thing: I want to be able to display the content of the current page/post in a column, the same way as you can with the Post/Page content element. Unfortunately, the only page/post option with the current version of Choices is to select a specific page/post. That defeats the purpose of a template, if you ask me :)