Absolute true fullscreen (no menus or arrows whatsoever)

[Done. There was a feature for this all along, CTRL+ALT+SPACE, wohoo!]

Hi!

I would love to be able to have Blender in absolute fullscreen mode, without any menu bars or arrows. This is the closest I could get to that situation (see the image).

Especially now that I found a way to stop timeline playback on markers that are named 'stop' in order to make animated Slideshows with Eevee.

Maybe F10 could show/hide the menubar and the N- and T-panel arrows?