Applying Subitem Templates to Multiple Items

The Subitem template is a great tool for generating a grouping of subitems for reuse. It would be great if the template could be applied to multiple items at one time. In my example, I am applying to subitems to a grouping of 95 course review assignments. It would be a huge time saver if I could select all the review assignments and add the subitem template to each one at the same time versus going into each individual course to apply the template.