During pull request code reviews many comments often need to be posted, both in-line, in the code, and as general pull request comments. As a review progresses, some of the earlier comments often turn out inapplicable, or may need to be changed. However, by that time notifications for earlier comments are already sent and may have caused the code author to lose time responding to them.

Having the ability to group comments into "reviews" would be very useful and would prevent such situations. I.e. being able to accumulate comment drafts and then send them all at once, producing a coherent review and sending only one notification for all of them.

Please consider implementing this. Thank you.