I would like to read my notes in a full preview mode.
Currently there are two views on a note:
The toggle for switching the view mode should be changed to support 3 options.
already supported as Fullscreen Ctrl + B and full screen F11 (2 different modes)
Version: 0.11.9-pre.1
OS Version and name : 16.04 Ubuntu
Ctrl + B hides the sidebar
F11 toggles fullscreen
The result looks like this:

My goal is to hide the left side of the screen. Keep only the markdown preview (the right side of the screen). Your solution doesn't solve it.
I'm using MacOS. Maybe the feature is supported on Ubuntu and is missing in MacOS?
Have you tried the green switch on the top right of the note.
In your screenshot you are not in full preview mode, you are in split view. Try my result in full preview mode, it should look like this:

I have achieved the full preview clicking on the green toggle and then somewhere else. It's rather a bug than a feature, because anywhere I click the view is toggled between edit and preview.
I think it is the same issue as reported here: #2196

you can change the behaviour in the preferences settings.
you can change the behaviour in the preferences settings.
@modmod24 Modifying Switch to Preview option in preferences helped.
Thank you, issue solved.
I download the latest yesterday. There are still two views on a note:
I clicked somewhere else, It was not change to full preview view. @petrkrejcik
Most helpful comment
I have achieved the full preview clicking on the green toggle and then somewhere else. It's rather a bug than a feature, because anywhere I click the view is toggled between edit and preview.
I think it is the same issue as reported here: #2196