The web interface for the Social-Engineer Toolkit takes whatever you select and generates an answer file that is ultimately placed into set-automate. Each response assigns a given value and the built in intelligence on the back-end parses your responses into building and crafting the attack into SET.
Download Social Engineer Toolkit 3.6:
svn co http://svn.trustedsec.com/social_engineering_toolkit set/
To turn the web interface simply type
./set-web