Inserts a Preview checkbox attached to <textarea id="message"> elements that shows MyCode output rendered by the server-side MyBB Parser.
The minimal preview mode works as a substitute to the visual editor, which can be toggled with the Show the MyCode formatting options on the posting pages preference (UserCP → Edit Options).
Parsing with HTML is currently not supported.
Requirements:
- MyBB 1.8.x
- https://github.com/frostschutz/MyBB-PluginLibrary
- PHP >= 7.1