Roger, do you have the WBE option for CC7 Changes turned on? You also have to login to the Apps server. See
https://www.wikitree.com/wiki/Space:WikiTree_Browser_Extension#CC7_Changes
At that link is a picture of how the Find menu should look, as Ros describes, once the option is enabled.
How do I find out if I have the WBE option for CC7 Changes turned on? How do I find out if I have logged into the Apps server. I believe that I have done this before.
You need to go to the WBE features page and scroll down to the Navigation section then its Find Menu subsection.
What browser are you using? This may affect how you get to the WBE features page. Generally you click an icon in or near the browser toolbar. There is a picture of the top part of the features menu at
https://www.wikitree.com/wiki/Space:WikiTree_Browser_Extension#Configuration