The video panel isn’t only a grid to click through one at a time — it can play a whole folder in order, and it has its own tagging system entirely separate from YouTube’s.
Play a folder in order
The play control in the panel steps through every video in the folder, one after another in the current tab, showing your position as it goes.
Tag videos, build playlists
Right-click a video’s chip and open Playlists — from there you can tag the video, or add it to one or more playlists you define yourself. Filter chips for your tags sit at the top of the panel, so a large library can narrow down to just what you’re looking for.
Free vs Pro
The free plan allows 2 tags and 2 playlists per video; Pro raises both to well beyond what most libraries need. A small note on the card lets you know when a video is at its limit. See every free-vs-Pro limit for the full table.