Custom Post Type archive link in WYSIWYG editor

I would like to add a link in the WYSIWYG editor to the archive page for a custom post type.

I have a custom post type case-studies and would like to add a link to the archive page in the tinyMCE WYSIWYG editor.

In the link suggestions, I can see the individual posts but not the archive page.

I know that I could manually add the url but would like to know if it is possible to add the archive to the list of suggestions.

EDIT: I am using archive-{post-type}.php. The archive page displays fine. I would just like to be able to lik to it