Snapping

Snapping makes the playhead and clip edges magnetically lock onto significant points such as the ends of other clips, markers, the start of the sequence, or keyframes when you drag near them. It guarantees frame-accurate alignment without manual nudging. Editors keep snapping on when butting clips together so no one-frame gap or overlap sneaks in, when aligning a cut to a marked music beat, or when matching edits across tracks. The same feature gets toggled off temporarily when you need free, unsnapped positioning, for example dragging a clip to an arbitrary spot or trimming by eye. Most NLEs bind snapping to a single key (often S) so editors flip it on and off fluidly while working. It is a small feature that prevents a lot of tiny alignment errors.