Added a save and exit button, to return to the page view. This will exit even if there is an error.
Copy over the meta to the new version.
Added a simple preview key to the version and a front end route which will allow this version to be previewed.
But of tidying up.
Put the content view tab into a table. Looks a bit tidier.
Added a check for existing drafts prior to creating a new one. Then the user can still choose to create a new draft if they like.