User guide: Finding things again

Search finds titles, channels, tags, notes and moment names, as you type.
Length: the menu beside Sort shows only videos under 10 minutes, 10–30, 30–60, or over an hour.
Smart views (in Folders & tags, and on the full page):
- Continue watching: videos you've started, most recent first.
- Not watched yet, Under 10 minutes.
- Forgotten gems: saved three months ago or more and never opened.
- I've got 10 / 20 / 45 minutes: unwatched videos that fit, oldest first.
- Surprise me: one random unwatched video.
- Gone from YouTube: videos whose owners made them private, or that YouTube deleted. Matinee checks quietly now and then and keeps what you saved; Search for it looks on YouTube.
In a folder, Next unwatched opens the oldest one you haven't watched.