One feature I use regularly in other tools is the ability for regular expressions to capture a range of values. For example, if a web page had several menus and sub menus as a FAQ, I would use a regular expression to extract all links on a page, then click one randomly, then do the same on the sub menu and so on.
This could be done by storing every link in a datatable and using a random selection, but each time the pages were updated the datatable would have to be updated as well. Using random responses from a regular expression is much quicker.
With Loadcomplete only allowing the choice of the first pattern match this approach is not possible.