Adding a custom VS Task List Token
You probably used the TODO task list token to add a comment about what it should be done. But what about if you want to use a custom token to add a different kind of comment; for example a Review(x) comment. VS allows you to add custom task list token via Tools->Options->Environment->Task List as it's shown in the following screenshot:
So then you will able to add the Review comments and these will be appearing in the Task List comments section: