I would like to create a new Runner that would load a random line from a CSV file on each iteration, and then run it just like the Web Page Runner does now. This is probably undocumented, but poss...
you can just download the component attached to the afore mentioned blog-post and save it to your <loadui>\script-components folder. It will show up in the Misc category of components in loadUI and can be used as described (in the blog post).