…Read newsgroups, topics, and articles conveniently
Open a subscription. Use right-arrow to select a newsgroup, and hit Enter to show its topics. Use down-arrow to select a topic, and hit Enter to show its articles. Scroll through the articles with the Page Down key or the Space Bar (each article will be marked as read when it’s been fully shown). When done with a topic, you can use Command-` to immediately show the next topic. When you select a different topic or newsgroup, the previous one will be un-shown, so the window will remain consistent.
When using the Up- or Down-Arrow, or Command-`, hold down the Option key to mark the previously-selected topic as read. Use the Mark Newsgroup Read command to mark an entire newsgroup.