Filter comments by author with or without your plugin

Happy new year to the GVectors team!

I have a page where I would like to use comments as a mean of "individual tutoring" between different teachers and different students, each student being tutored by one and only one tutor.

When a student goes to this page, I would like him to see only the comments where, in root comment or nested comments, there is at least one comment of which he is the author.

In the very same way, when a teacher goes to this page, I would like him to see only the comments where, in root comment or nested comments, there is at least one comment of which he is the author.

How can I achieve this, with or without your "search" plugin, as I don't want the user to search, I want the search to be performed automatically, before the comments are displayed.