Markdown Editor with side-by-side Live Preview - where is it?

In the Documentation (admittedly from 2 years ago) you guys show the development of the Admin GUI and in one example you show the Markdown Editor in a split-screen view next to the Live Preview: https://getgrav.org/blog/admin-plugin-development (scroll down to "Page Content Edit"), but I'm not seeing that in the admin panel today. Was it done away with, or are you guys implementing that in the "pro" admin panel that you're still working on? Thanks.

Grav-md-e_LP

This got changed in Admin 1.1, and the preview is still visible, but you need to click the "Eye" button on the top-right of the editor.

@flaviocopes I really liked the side-by-side editing. Maybe it is possible to add it again and provide a toggle, so that the user can decide?

In this way it gets even closer to StackEdit.