The Open URL option allows enables you to open a diagram exported as a URL and update it in the editor. The opened diagram you open will be saved in the page’s page's attachments.
After you click clicking the Open URL button, you will see the following dialog.:
After you insert inserting the URL and click clicking the Open button, the diagram will be opened in the editor.:
When Once you have 've finished working with on the diagram, click the Save Save & Exit button to save the changes and exit the editor, or click Exit to discard the any changes made (if any) and leave.
After thatAfterward, you'll see the a preview of the uploaded diagram.