Our Technical Support Portal has changed as we have moved to a new platform. Please visit support.quark.com to access your support tickets or to log a new ticket with us. All our existing customers should look for an email from email@example.com for activation of their New Support Account. If you face any difficulty in accessing the new portal, please write to us at firstname.lastname@example.org
Yes, you can work with multiple App studio documents at the same time, i.e. while uploading one issue and creating or modify another one. When you click on the upload button in AppStudio Publishing palette, QuarkXPress saves a local file and upload it to the portal. While uploading the document to AppStudio portal, QuarkXPress has nothing to do with the open document, because it has already saved a local file, hence you can work with a project while uploading the same or another to AppStudio portal.