You may load a custom iframe into the operator panel loading custom web page located on your website when visitor is selected by utilizing custom information feed.
Specifically lhnCustom1, lhnCustom2 or lhnCustom3 located within LiveHelpNow code installed on your website.
For example this code will load iframe into the operator panel showing "http://www.livehelpnow.net/dummy.html?id=1234" webpage within the visitor record:
var lhnCustom1 = encodeURIComponent('<iframe width=300 height=200 src="http://www.livehelpnow.net/dummy.html?id=1234"></iframe>');
The iFrame will be shown in both Visitors grid and Visitor General info tab.
Alternatively you may simply provide URL within lhnCustom parameter which operators may click on within operator panel to retrieve more information about the visitor from your website:
var lhnCustom1 = encodeURIComponent('http://www.livehelpnow.net/dummy.html?id=1234');
This is what iFrame implementation would look like in operator panel: