OS X Mavericks :: Using Automator To Change System Preference When Opening App

I have been using a Mac for a good 8 years now and I'm a happy user. I recently found out about Automator ('hey what is this little robot for?') and what it can do, yet I lack the knowledge of finding out what I must do to make a script to perform the following thing:  When I launch an app (FL Studio), I want the box checked next to 'Use F1 and F2 as standard function keys' in the Keyboard preferences pane in the System Preferences app. When I close the same app (FL Studio), I want the box unchecked next to 'Use F1 and F2 as standard function keys' in the Keyboard preference pane in the System Preferences app.  

I have found several other topics about this subject, however, those were about scripts when logging in to your computer, and not upon opening/closing an app. Please note that I am seeking for the setting to be changed when the app is opened and closed.