Insert code before the tag only for 1 page

Hi, I have installed a chat plugin (tawk.to) that I want to use only for my landing page. According to the instructions, I should insert code before the </body> tag.

Now, considering that I want to use this only on 1 specific page, should I do it through "Generatepress > Elements > Hook" and then "Display Rules > Location" ? If so, which hook should I choose on the settings?

thanks in advance.