You can specify a video transition and an audio transition as default transitions and quickly apply them between clips in a sequence. Default transition icons are marked by a red outline in the Effects panel. Cross Dissolve and Constant Power Crossfade are preset as the video and audio default transitions.
If you use another transition more frequently, you can set it as the default. When you change the default transition setting, you change the default for all projects. Changing the default transition doesn’t affect transitions already applied to sequences.
If you are preparing to add clips to a sequence
and you know you want to apply the default transition to most or
all of the clips, consider using the Automate To Sequence command,
which can put the default video and audio transition between all
the clips it adds. See Add clips to a sequence automatically.
Add the default transition between clips
Specify a default transition
Set the duration of the default transition