This Un-Link icon is used to start an In-cell search.
To perform an in-cell search, position the mouse over the Player; this will activate the grab handles and the image header.
Click the Un-Link icon in the bottom-left corner of the Player to open the search Timeline Bar for that Player. This essentially detaches the Player from the main Timeline Bar and allows you to view video on this Player from a different date/time. (You cannot export video from an in-cell search.)
Select the Link icon to end the in-cell search and reconnect to the main Timeline Bar.
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