Overlay Toolbox
The Overlay Toolbox contains controls for setting the data to be displayed on structures and in charts.
By default, the Overlay Toolbox is attached to the bottom of the Workbench Window, under the Viewing Area, in a horizontal configuration (top image). It can also be attached to the left side of the Viewing Area, in a vertical configuration (bottom image, set in View menu > Overlay Toolbox). Either configuration can be detached from the Workbench Window by left click + drag on the top of the Overlay Toolbox. To reattach, double click on the top of the Overlay Toolbox.
There are 4 tabs in the Overlay Toolbox, each controlling a different type of data viewing:

- Layers controls display of data maps on surfaces or in volumes.

- Charting controls which files are charted and, for data series/time series, which data for identified vertices is being displayed on a chart.

- Connectivity controls which Connectivity and Fiber orientation files, data is being loaded from for display.

- Vol/Surf Outline controls display of surface contours on volume slices/planes.

Tabs and files available for viewing change depending on whether you are in Chart view, Montage view, Volume view, All view, or Surface view.