Labels Pane

For more explanation on the labeling workflow, read through the Labeling workflow page.



Selection Mode

Options for switching between select mode and QuickLabel mode. Select mode is used for normal operations, and QuickLabel mode allows assigning each selected label with just one-click.

Increment Options

Options for selection increment behavior when labeling:

  • Do not increment: Selection stays the same after labeling

  • Go to next label: Selection advances to the next label on the list

  • Go to next unlabeled marker: Selection advances to the next unlabeled marker on the list.

Unlabeled Selected

Unlabels selected trajectories.

Label List Options

Splits the list of labels into two columns for organization purposes. Unlabeled trajectories will be sorted on the right column, and the selected marker set labels are sorted on the left column.

Link to 3D Selection

Show Range Settings

When enabled, shows the range settings to determine which frames of the recorded data the label will get applied to.

Marker Labels

Labeling Settings

Labeling Range Settings


Assign labels to a selected marker for all, or selected, frames in a capture.


Applies labels to a marker within the frame range bounded by trajectory gaps and spikes (erratic change). The Max Spike value sets the threshold for spikes which will be used to set the labeling boundary. The Max Gap size determines the tolerable gap size in a fragment, and trajectory gaps larger than this value will set the labeling boundary. This setting is efficient when correcting labeling swaps.

Max Gap

This sets the tolerable gap sizes for both gap ends of the fragment labeling.

Max Spike

Sets the max allowable velocity of a marker (mm/frame) for it to be considered as a spike.

Apply Labels

When using the Spike or Fragment range setting, the label will be applied until the marker trajectory is discontinued with a gap that is larger than the maximum gap defined above. When using the All or Selected range setting, the label will be applied to the entire trajectory or just the selected ranges.


Assigns the selected label onto a marker for current frame and frames forward.


Assigns selected label onto a marker for current frame and frames backward.

Forwards & backwards

Assigns selected label onto the marker for current frame, frames forward, and frames backward.

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