I've recently created a custom web mapping application on ArcGIS Online for one of our client's projects. I would now like to create a new web app for a different project for the same client that matches my existing web app. I can't seem to find a way to use the existing app as a template. I would like it to just make a copy of the existing app and switch out the associated web map to the one containing the new project data. Is this possible? Do I really have to create a new app from scratch each time or am I missing something?