Editing left side menu

Hi everyone.
I was wondering: is it possible to edit the appearance of the left side menu?
I was looking at some images of old versions of Grafana, such as this one:

I really like the fact that the left side menu is always visible and that you don’t have to click on the top left menu icon to open the menu.
Is it possible to get this appearance in the latest version?

Also, would it be possible to actually edit the menu and display only the icons of the different dashboards for view-only users?

Besides, why did they even change the menu?
I think the old menu was better as it was always there on the left.