Adjust transition alignment
You
can change the alignment of a transition placed between two clips
in either a Timeline panel or the Effect Controls panel. A transition
need not be centered or strictly aligned to the cut. You can drag
the transition to reposition it over the cut as desired.
Note: You can’t change a double‑sided transition into a single‑sided
transition. If you realign a double‑sided transition to the start
or end of a clip, it will use handles from the adjacent clip.
Align a transition in a Timeline panel
- In a Timeline panel, zoom in so that
you can clearly see the transition.
- Drag the transition over the cut to reposition it.

Dragging the transition in a Timeline panel to reposition
it
Align a transition using the Effect Controls panel
- Double‑click the transition in a Timeline
panel to open the Effect Controls panel.
- If the Effect Controls time ruler is not visible, click
the Show/Hide Timeline View button
in
the Effect Controls panel. If necessary, widen the panel to make
this button visible and active.
- In the Effect Controls time ruler, position the pointer
over the center of the transition until the Slide Transition icon
appears;
then drag the transition as desired. For finer control, magnify
the time ruler.To place all of the transition in the clip
preceding the edit point, drag the transition to the left to align
its end to the edit point.
To place all of the transition in the clip following
the edit point, drag the transition to the right to align its beginning
to the edit point.
To place unequal portions of the transition in each
clip, drag the transition slightly left or right. For finer control,
zoom in on the time ruler.

Dragging the transition in the Effect Controls time ruler

You can also choose an option from the Alignment
pop‑up menu in the Effect Controls panel. Custom Start appears as
an option in the Alignment field only when you drag the transition
to a custom location over the cut.