Unibox sort is Newest, Oldest, Unread first, or Name. Combine it with the Open, Snoozed, or Done tab and the sender or intent filter.
Sort the list
Default sort is Newest.
Open Unibox.
Stay on Open, or switch to Snoozed or Done.
Set sort to Newest, Oldest, Unread first, or Name.
Narrow with All senders or one sender, and All intents or one intent.
Intent labels match Inbox mix: Interested, Not now, Objection, Out of office, Neutral. Assign, snooze, and close stay on the thread. Sort does not send.
Empty list copy is "No threads in this view. Replies appear here after the next channel sync." A tight filter says "No matching threads." With no thread selected, the pane says "Select a thread to read the conversation and reply."
If the header says Sync delayed or Not synced yet, that is freshness, not sort. Account Protection still runs on Send.