When this option is enabled (by default), project attributes are created for each TestAttribute custom attribute on a method and a comment is scripted before the DotNetCallMethod call to help engineers determine which attributes are required by which methods.
If the Generating Project Attributes option is disabled, you need to script AttributeSetString calls before the call to define the attributes and default values.
We recommend that you enable the option because you can then manage all your attributes using the project attributes dialog and you do not need to browse through the script.