1. Play your preview video — open the link we sent you in another tab.
2. Pause at each moment you want changed and note the time shown in the player (e.g. 02:45).
3. Add one row per change using the + button — timestamp, what to change, and an optional reference.
Be as specific as you like: "replace this song", "cut this guest", "make this shot warmer" — the clearer the note, the faster the revision.