Admin manage pages

We have a client who has multiple authors on their website. They want to limit the pages each author can see in the admin manage pages area to each authors own pages.

I am wondering if there is a filter I can add to the code in edit-pages.php file in this line. wp(“post_type=page&orderby=menu_order&what_to_show=posts$post_status_q&posts_per_page=-1&posts_per_archive_page=-1&order=asc”);

Is there someway of adding post_author=current_user or something like that which would work? Thanks for any reply.

Mates2