You can limit Xeno's presence to just a few pages or even to only one page on your site, your landing page for instance.
First of all, you have to deploy the Code Snippet onto every web page of your website. You can find the Code Snippet in the Deploy section.
Then, at the bottom of the Deploy page, you can choose which pages must not show your Xeno chatbox:
Page URLs written in this box will not show the chatbox. This way, you can limit your Xeno chatbox to just a few pages of your website, if you wish.