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The Overlay feature allows you to display an Input on top of the currently displayed Input.

An Overlay can be activated by clicking the Overlay (1,2,3,4) buttons from the Input Bar.

Alpha Channel and Colour Keys

If the Input contains an alpha channel. (for example a PNG image with a transparent background) then it will be taken into account when displaying the overlay.

A Colour Key can also be set for an Input from the Input Settings. When set, the selected colour will display as transparent.

Overlay Settings

The Overlay Settings window specifies how an Overlay will display.
The window can be accessed by clicking the Overlay button in the bottom right hand corner of the main window.


Select the overlay channel to configure. 4 Channels are supported in the SD and HD editions.


There are two types of overlay available:


Display on top of the currently selected Input.

Picture In Picture

Display on top of the currently selected Input using the specified Pan and Zoom settings..

The blue box will display a preview of what the Picture In Picture will look like.


Specify the transition effect to use when the Overlay is activated.
Animated transition effects will run forward when the overlay is activated and run in reverse when the overlay is closed.

Effect Duration

Specify how long the effect should last, in milliseconds.


Specify how long the overlay should appear before automatically closing. Set this to 0 to disable automatic closing.

Stinger Cut Point / Stinger Input

See Stinger Transitions


A custom border can be specified for Picture In Picture overlays.

Colour: Double click the colour box to set the border colour.

Thickness: Specify how large the border will appear

Radius: Specify how rounded the corners of the border will appear. Set to 0 for square borders.