You're looking for information on the Mastadex Hero Editor!
The Hero Editor is a specific component of Mastadex that allows users to create and edit hero units, which are prominent display elements that showcase key terms, definitions, or other important information on a website.
Mastadex Hero Editor is a tool used to edit and customize the Mastadex plugin for WordPress. Mastadex is a popular plugin for creating and managing dictionaries, glossaries, and lexicons on WordPress sites.