Pin a thread from its context menu to keep it in the pinned section above your active work. Pinned threads are shown independently of their project, including when you connect to more than one environment.
On web and desktop, drag a pinned thread to change its position. On mobile, open the thread's menu and choose Move up or Move down. The order is stored by the server and appears on your other connected devices.
If reordering is unavailable for one environment, update the T3 Code server running in that environment. Older servers can still pin and unpin threads, but do not understand synced ordering; their pinned threads keep the default newest-first order below the ones you have arranged.