Topic on Extension talk:CodeMirror

It should be able to switch between these three editing possibilities during editing. All of them have their advantages and disadvantages.

This is currently possible, in content pages. See mw:Help:VisualEditor/User_guide#Switching between the visual and wikitext editors for switching between those, and both the 2010 wikitext editor and 2017 wikitext editor contain a codemirror button, the latter within the menu.

Thanks. I expected to select between three options instead two options with one sub-option.