Editor Settings & Shortcuts

Editor settings

All users can configure the Label Editor, and configure the Label Editor to their specific needs. This includes changing the way elements display, drawing settings, and settings related to automated labeling.

A user’s settings persist and do not reset at the end of a session.

Editor settings are divided into several sections which can be filtered using the search bar:

• Data details: Details relating to the file currently open in the Label Editor.
• General: General interactions with the Label Editor.
• Label display: Toggle elements to show or hide those elements within the Label Editor.
• Drawing: Control how labels are drawn.
• Object tracking: Settings controlling object tracking.

Use the search bar at the top of the Editor settings to search for specific settings, or keywords.

Editor settings sections

Data details

The Data details section displays information about the asset currently open for annotation, or review. This information is gotten from the data itself, and is not available for direct manipulation. We use this section to provide you with valuable information about the data you are working on, including if we may have detected any possible issues with the data encoding.

Setting	Description
Data title	The title of the file currently open in the Label Editor.
Data type	The type of data unit currently open in the Label Editor.
Dimensions	The size of the image or frame currently open in the Label Editor.
Frames per second	frequently abbreviated FPS, this is the number of frames, or images, per second in a video. Higher FPS means smoother playback. This value is only valid for videos.
Browser compatibility	Some videos may have FPS or video encoding issues synchronizing drawn labels with frames in modern browsers. You can read more about supported videos here, and learn more about frame synchronization issues here and in our documentation here.

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General Settings

The General section of the Label editor settings contains the following components:

Feature	Description
Auto-save interval	Controls how often labels are auto-saved (min: 15s, max: 600s, default: 120s).
Display bulk Approve/Reject buttons	Toggles buttons to approve or reject all instances in a frame.
Invert mouse wheel zoom direction	Reverses the default zoom behavior for scrolling up/down.
Display timestamps	Shows timestamps instead of frame numbers for object instances, attributes, and consensus review.
Turbo mode	Speeds up annotation by allowing rapid assignment/confirmation of attributes with auto-zooming.
Frame skip interval	Sets the number of frames skipped when using frame-skip buttons.
Enable skip to next annotation buttons	Adds controls to navigate directly between frames with annotations.
Display image title	Toggles visibility of the data unit title in the Label Editor.
Expand classifications	Auto-expands all classifications, making hotkeys visible for quicker annotation.

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Label Display Settings

The Label display section of the Label editor settings contains the following components:

Feature	Description
Display object names	Toggles visibility of annotation object names in the Label Editor.
Display object hash	Toggles visibility of the label hash (ID) for annotation objects.
Display object classifications	Toggles visibility of object attributes in the Label Editor.
Object label font size	Sets the font size (in px) for all label display settings.

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Drawing Settings

The Drawing settings section of the Label editor settings contains the following components:

Feature	Description
Handle size	Adjusts the size of vertices and keypoints (1-10 px).
Object opacity	Controls label opacity (1% - 100%) for better visibility.
Selected object opacity	Adjusts opacity multiplier (1x - 10x) for selected objects.
Primitive keypoint sensitivity	Sets precision for selecting/moving keypoints (1.00 - 10.00).
Segment anything RDP parameter	Sets RDP parameter for (SAM).
Drawing line aides	Adds crosshairs to improve label accuracy.
Freehand drawing & Polygon coarseness	Enables freehand drawing with adjustable coarseness.
Show polyshape angles	Displays angles on polygons and polylines.
Permanent drawing (new instances)	Allows continuous drawing of new instances without reselecting the tool.
Permanent drawing (existing instances)	Automatically moves forward and prompts labeling of the same instance on the next frame.
Skeleton points	Toggles visibility of individual object primitive keypoint names.
Interpolation auto adjustments	Keeps manually labeled frames intact while adjusting interpolations with confidence scores below 99%.

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Object Tracking

Number of frames to predict

Specify how many subsequent frames the object tracking should continue from the current frame. For example, if you start on frame 50, and set Number of frames to predict to 50, the tracker attempts to predict labels on frames up to and including frame 100.

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Keyboard shortcuts

The words ‘keyboard shortcuts’ and ‘hotkeys’ are used interchangeably and refer to the same concept.

A full list of keyboard shortcuts can be found in the Label Editor. Use Control + Shift + K to open the full list of shortcuts.

Windows and Mac may have different keyboard shortcuts. Use Control + Shift + K to open the full list of shortcuts

Use the following hotkeys to speed up common or useful operations.

Review mode

Action	Shortcut	Configurable?
Approve selected label	N	Yes
Reject selected label	B	Yes
Approve all labels	No default hotkey. Must be configured.	Yes
Reject all labels	No default hotkey. Must be configured.	Yes
Toggle review edit mode	Ctrl + E	No
Mark as not labelled	⇧ + Y	No
Mark as in progress	⇧ + U	No
Mark as labelled	⇧ + L	No
Mark as review required	⇧ + O	No
Mark as reviewed	⇧ + P	No
Turbo attribute mode	Ctrl + ⇧ + T	No
Toggle auto zoom (Turbo review mode)	Ctrl + ⇧ + Y	No
Review mode	Ctrl + ⇧ + R	No

Single label review:

Action	Hotkey	Configurable?
Go to next label	↑	Yes
Go to previous label	↓	Yes
Previous	↓	No
Next	↑	No

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General

Action	Shortcut
Save	Ctrl + S
Submit task	⇧ + Enter
Shortcuts menu	Ctrl + ⇧ + K
Next	↑
Previous	↓
Approve	N
Reject	B
Next frame	→
Previous frame	←
Play / Pause	Space
Copy (Mac)	⌘ + C
Copy (Windows)	Ctrl + C
Paste (Mac)	⌘ + V
Paste (Windows)	Ctrl + V
Special paste (Mac)	⌘ + ⇧ + V
Special paste (Windows)	Ctrl + ⇧ + V
Delete	Backspace
Delete selected object from frame	⇧ + D
Select all (Mac)	Ctrl + A
Select all (Windows)	Alt + Ctrl + A
Complete	Enter
Cancel	Esc
Change class type	C
Track selected object from frame	⇧ + T
Interpolate selected object from frame	⇧ + I
Undo (Mac)	⌘ + Z
Undo (Windows)	Ctrl + Z
Redo (Mac)	⌘ + ⇧ + Z
Redo (Windows)	Ctrl + ⇧ + Z
Drag image (Windows)	Ctrl + Click and drag
Drag image (Mac)	⌘ + Click and drag
Hide All Labels	Shift + H
Display object name in label title	Shift + N

Keyframes:

Action	Shortcut
Add keyframe	⇧ + A
Delete keyframe	⇧ + D
Previous keyframe	⇧ + ←
Next keyframe	⇧ + →

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Annotate mode

Common Actions:

Action	Shortcut
Permanent drawing	Ctrl + ⇧ + P
Freehand drawing	D
SAM segmentation	Ontology hotkey + Shift + A
Pan	Middle Mouse Button

Classification Ranges:

Action	Shortcut
Add range	N
Save range	M
Set to this frame	X
Set to this frame & save	Z
Set start to this frame	C
Set end to this frame	V

Draw Polygon Mode:

Action	Shortcut
Cancel	Esc
Complete	Enter
Select brush tool	G
Select eraser	H
Increase brush size	[
Decrease brush size	]
Add vertex	A
Remove vertex	S
Edit vertex	F
Brush tool	G

Draw Bitmask Mode:

Action	Shortcut
Cancel	Esc
Complete	Enter
Select brush	F
Increase brush size	]
Decrease brush size	[
Select eraser	H
Select polygon tool	G
Toggle threshold mode	J
Select eyedrop tool (Once Thresholding is turned on)	K

DICOM specific operations:

Action	Hotkey
Windowing modification	Alt + W / Option + W
Measurement tool	Alt + M / Option + M
Measurement tool	Alt + M / Option + M