Another cool feature that almost no user has discovered is the Advanced Editor.
You can get there with this button.
https://0x0.happytavern.co/5ed44790ba779a83e4373ad67587f000c451b2adb123273211b3dceae629c965
It is a **full Code Mirror powered markup editor** that automatically switches between Markdown and Asciidoc, depending upon which kind of event you are publishing (you can publish and edit/fork any event). You can edit all tags there, have it grammar-checked _in your own language_ using the powerful LanguageTools API, use the buttons to help you insert code or LaTeX (which I also handle elegantly), and preview the json.
All APIs (Mercury Relay, Piper read-aloud, LT grammar check, and LibreTranslate) are run on my own server and I rotate the logs.