Please note this is an old forum thread. Information in this post may be out-to-date and/or erroneous.
Every phpdocx version includes new features and improvements. Previously unsupported features may have been added to newer releases, or past issues may have been corrected.
There's no way to accomplish that task using the current release of phpdocx. The next version will include new methods and options to get styles and query contents by styles; there's no release date yet for the next release.