B/side
Cutting

Transitions

Putting a dissolve, dip or wipe on a cut, changing its kind and length, and dragging its edges or body with Transition Manipulation.

Dragging a dissolve, with Transition Manipulation on outgoing shot incoming shot the cut 10 | 14 Start edge more or less before the cut Body slides it across the cut, same length End edge more or less after the cut
A dissolve across a cut: its start edge, its body and its end edge, and what dragging each one does

\\ puts a transition on the cut nearest the position indicator, on every track you have on — a dissolve on the picture and a crossfade on the sound. Right-click it on the timeline to make it a dip, a wipe, a clock or a push, to pick a length, or to remove it.

A transition plays the outgoing shot on past the cut and starts the incoming one early, so it needs media either side of the cut that the cut itself does not use. When a shot has not got enough, B/side says which one and by how much.

Dragging it: Transition Manipulation

Turn on Transition Manipulation — Shift-Y, the Transitions button on the timeline, or Edit ▸ Transition Manipulation — and a transition on the timeline is something you can take hold of. The cursor says which part you are over.

DragWhat changes
the start edgehow much of it plays before the cut
the end edgehow much of it plays after the cut
the bodywhere it sits: it slides across the cut and keeps its length
an edge with Optionboth sides together, so it grows or shrinks about the cut

While you drag, the numbers over it are the frames before the cut and after it. They turn red when you have asked for more than the shots have, and the transition stops at the last frame there is rather than refusing the drag.

The cut never moves, and neither edge can be dragged across it. To move the cut itself, trim it — see Trimming. Each drag is one change, and one Undo puts it back.

Turn Transition Manipulation off again (Shift-Y) and a click on a transition is a click on the cut under it, as it always is.

Every illustration here is drawn, not screenshotted: a screenshot of a build from three weeks ago is confidently wrong and nobody can tell by looking.
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