I wish it was possible to switch/copy templates to an existing application built with Experience Builder.
Often, a custom template will be further developed and improved over time. If the same template is used for multiple similar applications, and all applications need to be updated with the same improvements, it would be very useful to be able to copy new templates to an existing application. This will make it easier to ensure that all applications is using the same template (only need to add/update the data sources, web maps, etc. for each application). Currently, as far as I understand, this is not possible (ref. FAQ in link below).
FAQ: Is It Possible to Switch Templates in ArcGIS Experience Builder? (esri.com)
