Thanks for the comment. If you want to experiment with NUM then this page is the best starting point (and doesn't require login): https://app.numserver.com/too

Thanks for the comment. If you want to experiment with NUM then this page is the best starting point (and doesn't require login): https://app.numserver.com/tools/editor/add https://app.numserver.com/tools/editor/add We're due to publish a page to numserver.com that explains more about the service and allows you to experiment before requiring sign up.