Hey there,

I am really sorry for the delay of this reply as it is a public holiday for us here.

Thanks for reported, I will inform to our site administrator regarding this.

Based on what i know as long as you download that Komento plugin installer file from Docman, once you install it, you shouldn't configure anything, then it will show the comment form on the Docman page.

Because this Komento plugin integration file developed by Docman developer.

Perhaps you can provide us with your following details so we can better have a check?

1. Joomla backend access
2. FTP access
3. which page URL is docman page