A view is a named snapshot of how the current tab is filtered and sorted. Save one when you've dialed in something useful, recall it later in one click.
What gets saved:
What does NOT get saved:
Where they live: in your browser only (localStorage). Not synced across devices. Right-click a saved view in the dropdown to delete it.
Built-in views in the dropdown are pre-defined "angles" that include metric thresholds (e.g. "High ACOS 7d (>35%)"). You can't edit those, but you can save your own that build on them.