If you don’t want to go through notifications for a particular branch of a discussion, you can mark all changes to claims under a particular claim as seen. (Note that this also allows you to mark all changes in a discussion as seen, by doing this to the thesis.) To mark a branch as seen, click on the three dots that appear at the top-right-hand of a claim when you hover over it: or, right-click on the claim to open the claim menu. Select ‘Mark Branch Seen’.