settings -> Code generation -> templated -> Generate an example main program is the correct way of disabling the generate main.
If you are looking to generate few files then please experiment with the below setting :
Code generation->Code placement->File Packaging Format
Change this from Modular to Compact
This setting will generate fewer files compare to the previous.
Please read about "File Packaging" in the documentation you your release version.
You can invoke the document for your release using the below command :