Click the Collaboration Panel
icon, 
, in the status bar or select View
> Collaboration.
Response: The Collaboration Panel will be shown or hidden.
To show and hide the Collaboration Panel:
Click the Collaboration Panel
icon, , in the status bar or select View
> Collaboration.
Response: The Collaboration Panel will be shown or hidden.
To configure the Collaboration Panel:
In the Collaboration Panel,
click the configure icon in the bottom left corner. 
Response: The Configure Collaboration Panel dialog will open.
Type or paste the URL of interest in the dialog.
Comment: The Collaboration Panel is configured per page in the analysis, so you can link the Collaboration Panel on different pages to different URLs.
Click OK.
See also:
What is the Collaboration Panel?
Details on Configure Collaboration Panel