As salesforce old wave dashboards are getting expired in June'19, we have around 19 dashboards to convert to new dashboard design. As the old widgets and other components are not editable in old dashboards, I am unable to convert the dashboard into newer version. Also, these dashboards are built in 2016 and we do not have those requirements in order build from scratch.
Is there any other better solution to convert old wave dashboard to newer version. Please help