If I'm understanding your question correctly... that's how the tool is designed to work. it executes what you have in it. So, once you've created your table, wipe the statement you don't need. Or, build a macro for it.
There were a large number of users at our organization that had a need for this, so we built an Output macro that is used to dynamically design Teradata tables. It automates the create and set index statements and then removes that when not needed.