Hello @faramarzz, you have many options to do what you want.
If you go to Settings -> General Settings, you can specify the pages where you want to show chat icon on “Include chat window on the following pages”. Specify pages ID, comma separated. You can also specify in which pages you don’t want the icon, just fill “Exclude chat window on the following pages”. Moreover, you can enable/disable chat icon on specific post types. Create some post types and you’ll see a list in “Exclude chat window on selected post types”.
About icon position: in “Advanced settings”, there is “Open chat window via” option. Just create an element in your page with some specific class, and input the class there. When you click that element, the chat window will open.
