The sort icon (the sliders) opens a panel that controls the order of the list and which notifications appear in it:
- Ordering — choose Newest (the default) or Oldest first.
- Show notifications from all companies (0 selected) — for multi-company accounts, hover the row to tick the companies you want; the label changes to Show notifications from selected companies and the list reloads at once. Leave nothing ticked to see every company.
- Show read — on by default; the list shows both read and unread notifications. Turn it off to see only unread ones.
- Show unread first — off by default; when on, it floats unread notifications to the top regardless of date.