Internal link helper

I’m evaluating Kirby for a few projects and there are a lot of things to like.

I don’t however see an easy way to add an internal link to pages in already in the site. This is how it works in Wordpress:

Am I overlooking something? Or if it is not possible right now: is this something your clients find difficult? Do you have another solution/workflow for your clients?

Check out this custom field:

Thanks, that seems to do exactly what I needed. Thanks.