Floating button with links to messengers, can be remade for links to email and anything else, Fontawesome icons. The code is universal, suitable for insertion into the 1C Bitrix template, so that nothing fails, it is recommended to insert the code at the end of the template before the tag
You can add as many messengers as you like, similar to those that are inserted by default.
*The plugin is Russified!!!

No installation required, just unzip the archive in the root of the site and paste the code from the HTML.txt file into the main page template