I often want to create a new notebook based on a current one, but not fork it.
Then I click “new” on the top right corner which will replace the current notebook view with a blank document.
I would argue that a “new document” button should open a new window/tab as default. Or at least, that is what I expect it to do - like “file>new file” in a code editor.
Another option would be to allow something like shift+new to open a new tab.
Or in the modal a second button “create notebook in new tab”
On macOS you can command-click the new button for this (or the create notebook button in the new notebook modal). I believe the non-macOS keyboard modifier for the same is ctrl.
Thanks!
On windows I can confirm that ctrl + “create notebook” will open a new tab.
I didn’t try this on the create notebook button.
Perhaps it might make sense to replace the button element with a link element to make this feature more easily discoverable?
The functionality is there, just not we’re I was expecting it.
Suggestion: allow a new tab on Ctrl+“new” too
But yes, using hrefs would could make thinks easier (default click on scroll wheel for new tab eg)
…probably not because the onclick event is captured anyway 
You should be able to Ctrl-click the “+ New” button though?
If not, that’s an oversight in https://github.com/observablehq/feedback/issues/148
Ha, it turns out it is the windows-key + new that works for “New” as a new tab.
I have made a comment in the issue