Navigate
to the In point in the Timeline panel and click the Set In Point button in
the Program Monitor.
Navigate
to the Out point in the Timeline panel and click the Set Out Point button .
You can move the In and Out points together
without affecting the duration by dragging the In/Out Grip (textured
area at the center of the shaded span between the In and Out points)
in the Program Monitor or Timeline panel.
In the Timeline
panel, select a clip or gap in the sequence.
Choose Marker > Set Sequence Marker >
In And Out Around Selection. This sets sequence In and Out points
that match the selection’s In and Out points.
This command is particularly useful when
replacing or removing clips in the sequence using three‑ and four‑point
editing methods. (See Make three‑point and four‑point edits.)