Choose sort order clips are added in the order theyre

choose Sort Order, clips are added in the order they’re listed in the Project panel: from top to bottom in List view; or
from left to right, top to bottom in Icon view. If you choose Selection Order, clips are added according to the order in
which you selected them in the Project panel.
Placement
Specifies how clips are placed in the sequence. If you choose Sequentially, clips are placed one after another.
If you choose At Unnumbered Markers, clips are placed at unnumbered sequence markers. Choosing At Unnumbered
Markers makes the Transitions options unavailable.
Method
Specifies the type of edit to perform. Choose Insert Edit to add clips to the sequence starting at the sequence’s
current time using insert edits, which shift existing clips forward in time to accommodate the new material. Choose
Overwrite Edit to use overwrite edits, which allow the new material to replace clips already in the sequence.
Note: The Automate To Sequence command disregards target tracks and always uses the lowest available video and
audio tracks. For example, if Video1 and Audio1 are locked, it will automate to Video 2 and Audio 2, or the lowest audio
track with the correct channel type.
Clip Overlap
Specifies the duration of the transition and how much to adjust the clips’ In and Out points to
compensate for it when Apply Default Audio Transition or Apply Default Video Transition is selected. For example,
a value of 30 frames trims the clips’ In and Out points 15 frames at each edit, where a 30-frame transition is added. The
default value of this option is 15 frames. A menu lets you set the units to frames or seconds.
Apply Default Audio Transition
Creates an audio crossfade at each audio edit, using the default audio transition
(defined in the Effects panel). This option is available only when audio tracks are present in selected clips, and the
Placement option is set to Sequentially. It has no effect when the Clip Overlap option is set to zero.
Apply Default Video Transition
Places the default transition (defined in the Effects panel) at each edit. This option is
available only when the Placement option is set to Sequentially, and has no effect when the Clip Overlap option is set
to zero.
Ignore Audio
Ignores the audio in clips selected to be automated to the sequence.
Ignore Video
Ignores the video in clips selected to be automated to the sequence.
The Adobe Tutorials website has this article has this article about the Automate to Sequence command and storyboard
style editing called "Edit Storyboard Style.”
For more information about creating slide shows by adding clips to a sequence automatically in Premiere Pro, see this
video by Video2Brain by Jan Ozer.
More Help topics
“ Specify and apply default transitions ” on page 334
Mixing clip types in a sequence
You can mix clips with different frame rates, frame aspect ratios, and frame sizes in the same sequence. For example,
if you drop an HD clip into a sequence in an SD project, the clip will be letter-boxed and scaled to the SD frame size
automatically. Similarly, if you drop an SD clip into a sequence in an HD project, the clip will be pillar-boxed
automatically.