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Sphinx Warnings

27: WARNING: undefined label: 'bpy.ops.screen.redo_last'
30: WARNING: undefined label: 'bpy.types.sequencetimelinechannel'

Note the preview is not accurate and warnings may not indicate real issues.



Video Sequencer Header.

View Menu

As usual, the View Menu controls the editors view settings.

Sidebar N

Show or hide the Sidebar.

Toolbar T

Show or hide the Toolbar.

Adjust Last Operation

Displays a pop-up panel to alter properties of the last completed operation. See bpy.ops.screen.redo_last.


Show or hide the bpy.types.SequenceTimelineChannel.

Preview as Backdrop

Displays the current frame in the background of the main view like in the Compositor.

Frame Selected NumpadPeriod

Zooms in the display to fit only the selected strips.

Frame All Home

Zooms the display to show all strips.

Zoom Shift-B

Click and drag to draw a rectangle and zoom to this rectangle.

Limit View to Contents

Limit the timelines height to the maximum used channel slot.

Play Animation Spacebar

Start or stop playback of animation. This will start playback in all editors.

Go to Current Frame Numpad0

Scrolls the timeline so the current frame is in the center.

Jump to Previous Strip PageDown

Current frame will jump to beginning of strip.

Jump to Next Strip PageUp

Current frame will jump to end of strip.

Jump to Previous Strip (Center) Alt-PageDown

Jump to previous center of the strip.

Jump to Next Strip (Center) Alt-PageUp

Jump to next center of the strip.

Set Preview Range P

Interactively define frame range used for playback. Allows you to define a temporary preview range to use for animation playback (this is the same thing as the Playback Range option of the Timeline editor header).

Set Preview Range to Strips

Sets the frame range of preview to the range of the selected strips.

Clear Preview Range Alt-P

Clears preview range.

Set Start Frame Ctrl-Home

Set Start of animation range to the current frame.

Set End Frame Ctrl-End

Set End of animation range to the current frame.

Set Frame Range to Strips

Sets the frame range of preview and render animation to the frame range of the selected strips.

Refresh All

To force Blender to re-read in files, and to force a re-render of the 3D Viewport, click the Refresh Sequencer button. Blender will update and synchronize all cached images and compute the current frame.

Certain operations, like moving an object in the 3D Viewport, may not force the Sequencer to call for a refresh of the rendered image (since the movement may not affect the rendered image). If an image or video, used as a strip, is changed by some application outside of Blender, Blender has no real way of being notified from your operating system.

Sync Visible Range

Synchronize the visible range with other time based editors.

Show Seconds Ctrl-T

Shows seconds instead of frames on the time axis.

Show Markers

Shows the markers region. When disabled, the Markers Menu is also hidden and markers operators are not available in this editor.

Show Cache

Show which frames are Cached Show all enabled types; Final Images, Raw Images, Preprocessed Images, Composite Images

In order for this property to be visible, enable Developer Extras.

Sequence Render Image

Render an image of the current frame.

Sequence Render Animation

Render timeline from Preview Start to Preview End Frame to a Video file or series of images.

Export Subtitles

Exports Text strips, which can act as subtitles, to a SubRip file (.srt). The exported file contains all Text strips in the video sequence.

Toggle Sequencer/Preview Ctrl-Tab

Switch the editor display type between Sequencer and Preview.

Markers Menu

Markers are used to denote frames with key points or significant events within an animation. Like with most animation editors, markers are shown at the bottom of the editor.

Markers in animation editor.

For descriptions of the different marker tools see Editing Markers.

Main View

Adjusting the View

Use these shortcuts to adjust the sequence area of the editor:

  • Pan: MMB

  • Zoom: Wheel

  • Vertical Scroll: use Shift-Wheel, or drag on the left scrollbar.

  • Horizontal Scroll: use Ctrl-Wheel, or drag on the lower scrollbar.

  • Scale View: Ctrl-MMB and drag up/down (vertical scale) or left/right (horizontal scale).

  • Scale View Vertically: drag on the circles on the vertical scrollbar.

  • Scale View Horizontally: drag on the circles on the horizontal scrollbar.


The Playhead is the blue vertical line with the current frame number at the top. It can be set or moved to a new position by pressing or holding LMB in scrubbing area at the top of the timeline. You can move the Playhead in increments by pressing Left or Right, or by using Alt-Wheel. You can also jump to the beginning or end frame by pressing Shift-Left or Shift-Right. As you do, the image for that frame is displayed in the Preview region.

When you drag the frame indicator with Shift-RMB directly on a sequence strip, this will show the strip solo, (temporarily disregarding effects and other strips, showing only this strips output) and the strip will be highlighted.

When holding Ctrl while dragging it will snap to the start and endpoints of strips.

Real-time preview is possible on reasonable computers when viewing an image sequence or movie (avi/mov) file. Scene strips can use viewport previews or proxies for real-time playback, otherwise displaying rendered frame is supported, but typically too slow for real-time playback.


Every other synced editor can be used for scrubbing e.g. the Timeline.