[shmuelzon]

Source Edit can show the editor and the rendered document side by side. The rendered side follows the buffer as you type; only Save writes the file. Toggle with the Split pill, Option-click on Edit, or ⌥⇧⌘E.

[b451c]

Thank you for this, it is in 1.15.0 as "Edit Side by Side" with your shortcut (Option-Shift-Command-E) and Option-click on Edit.

I merged your branch and added a few things on top:

• the viewer's own rendering path is untouched when you are not editing, and only one preview render runs at a time;
• the window grows only when it is narrower than two readable halves, and gives the width back when you leave (also with tabs);
• Contents and #anchor links scroll both sides;
• print and export stay off while editing, as in Source Edit.

You are credited in the changelog. If something behaves differently from what you intended, tell me here.

[shmuelzon]

Nice additions, thanks!