While in Trim mode, you can select additional transitions for trimming in different contexts.
To select additional transitions on contiguous tracks for trimming on
the same side:
Likewise, you can deselect tracks in the Track Selector panel to
remove transitions on those tracks from the trim procedure.
To select additional transitions for single-roller trimming in varying
locations on different tracks:
This method is useful when you are working with staggered transitions
across multiple tracks. It also allows you to select both A-side and B-
side transitions for simultaneous trimming in opposite directions
(asymmetrical trim). This is not possible with dual-roller trims.
As you move the pointer back and forth across a transition, the roller icon changes from an A-side roller (facing left) to a B-side roller (facing right) to indicate the type of selection.
You do not see the Dual-Roller icon in the Timeline.
You can select and trim two heads or tails simultaneously, in any combination, for each track in the sequence. All selected transitions are trimmed the same number of frames. This allows you to save time and, in some cases, to maintain sync by performing a single-trim procedure across multiple tracks and transitions. For more information about lassoing, see
Entering Trim Mode.