Close to perfect!

This plugin is pretty awesome as it is; the only thing I’d change would be to somehow make the “UPDATE” button more prominent, maybe by moving it (or adding another instance of it) lower down in the configuration area. In its present location it goes out of view when I scroll down my list of columns, and I keep forgetting to go back up and save what I’ve done.

Anyway, it’s totally easy to use, and makes the WP admin experience so much better!! I love that each type of content (page/post/event/product/whatever) can have its own selection and arrangement of columns, according to what’s appropriate for that type.