Press Enter when a callout begins → the buffer opens and the start time is stamped. Tap digits 1-6 (hold ⇧ for body, e.g. ⇧1 = jab to body) and defense keys to compose the combo as it's called. Press Enter again when it finishes → the end time is stamped and the callout is saved. Space toggles play/pause; recording runs independently of playback. On the loudness strip you can drag to scrub the playhead, or right-click to mark a callout's start then its end right on the sound — instead of pressing Enter.