After using the search function in the new version, all topic emails will be automatically expanded, which greatly affects the overall look and feel. If you need to collapse a topic, you have to go to the menu bar and click View - Topics, and then there will be an option to collapse the topic or not, which is very inconvenient. I hope that a small button for the topic folded state can be added to the main interface or can be directly accessed (such as the reading status, topic, and the small horizontal column) to facilitate use. I hope it will be adopted. Thank you for your hard work.