For easy pose as TrekkieGrrrl suggested it's a snap to add this functionality to an appropriate figure using PhilC's "All Tied Up" scripts. Of course you would have to build an appropriate figure to add that functionality. I've found that the scripts work best if applied to a figure that you have built, grouped, and rigged yourself. The script has an add EP dials to existing figure command that only takes a few moments to insert the dials into the figure. For specifics see_

http://www.philc.net/AllTiedUp.php