The phrase "addition to directing" means that besides directing, there is another role or responsibility.
Sentences with «addition to directing»
In addition to the direct effects of warming temperatures, there are indirect effects of climate change. (dotearth.blogs.nytimes.com)
And in addition to the direct health benefits of efficiency measures, evaluating a home's performance allows you to address key health and safety issues. (aceee.org)
In addition to Direct Loan Consolidation mentioned above, you can also consolidate your student loans by refinancing. (studentloanhero.com)