You can select a background color or background image for your engagement page, select the color and size of the header, embed a small image for the logo at the top section of the engagement page and choose which messengers will be used on it.
Note: Engagement page will have the same messengers that you have on the Engagement button.
When it comes to text customization, you can use Contact name or Responsible user name in both text sections (header and body), you can also select text for each messenger. Otherwise, it will default to the name of the messenger (i.e. Instagram, FB messenger, etc.)
You can also preview how the page will look on desktop or mobile.
At the bottom section of these settings in Kommo, you will find control information about the engagement page. This is the link to the page. You can also set up text which will be visible when the link to your engagement page is sent to a client.