Set the viewport scaling. Either use the dropdown to set a value or type in a value.
Go to the beginning of the Playback Range.
Go back one frame.
Go forward one frame.
Go to the end of the Playback Range.
This icon will turn green to indicate that the Quicklist tag is active and affecting what is being displayed in the Viewport.
Globally enable/ disable audio playback (requires Show Beta Features to be enabled in Preferences).
Play Audio - enable/ disable audio playback.
Audio Layer - select the audio layer to playback.
Snap Shapes to grids, other shapes, the composition etc.
Enable Snapping - enable/disable snapping.
Snapping Threshold - set the distance from a grid (in screen pixels)
within which snapping will happen.
Grid Snapping - enable/ disable grid snapping.
Ruler Guide Snapping - enable/ disable snapping to rulers.
Composition Snapping - enable/ disable snapping to the centre of the composition.
Bounding Box Snapping - enable/ disable snapping to bounding boxes
Point Snapping -
Display grid lines in the Viewport.
Show Grid - show/hide the grid.
Grid Color - set a color/ alpha for the grid.
Grid Size - set the size of the grid (px).
When enabled the User Interface will update during playback. This includes elements like the playhead in the Scene Window, the Equalizer on the Sound Behaviour and attributes in the Attribute Editor. Note that this may occasionally have a detrimental affect on performance.
Enable/ disable playback caching.
When enabled, a white border will be drawn around the Composition Boundary.
Draw onion skinning layers in the Viewport.
Onion Skinning - enable/ disable onion skinning.
Pre Color - set the color for the shapes before the current frame.
Pre Frames - set how many frames to draw before the current frame.
Post Color - set the color for the shapes after the current frame.
Post Frames - set how many frames to draw after the current frame.
Outline Only - do not fill each shape.
Draw masks in the Viewport.
Show Clipping Masks - when enabled, masks connected to selected Shapes will be drawn as an outline in the Viewport.
Fill - when enabled, a green overlay will appear in the Viewport whenever a shape with a mask connected is selected. The green area represents the zone in which your shape will be visible.
Set the transparency style of the viewport.
Use Checkerboard - when checked, a checkerboard will display where there is transparency. Note - all Compositions have a Composition Background. If the Alpha is set to 255 checking this setting will have no effect (there is no transparency).
Set Composition Background Alpha to 0 - clicking this button will set the Composition Background Alpha to 0.
Draw Debug Information - draw (non-renderable) diagnostics information in the viewport.
Viewport Backend - set the type of viewport renderer.
GPU - use GPU.
CPU - use CPU.
Show Drawables - control the display of drawables (Falloffs, Nulls)
Always - always show drawables.
Except during Playback - show drawables except during playback.
Never - never show drawables.
Shape Depth Debug - can be used to diagnose the depth of certain Shapes within Sub Meshes. Useful for things like SVG artwork.