isn’t currently possible
Well… It depends what you mean by “when I open a new note”.
Are you aware of the feature where you can link one panel to another?
- Create a 2-panel layout.
- In panel one, click more options “Link with Panel”
- Hover over panel two. It should light up. Click on it, and it will become linked with the other panel.
THEN, when you open new notes in panel two, panel one will automatically show the same note. And you can set one to Preview and one to Edit.
If you meant something else, like Obsidian automatically creating a layout for you, no that isn’t currently possible, as far as I know.