custom.base_template Background Specifies the template used when the custom data source was created. Setting the key Set this configuration key in the search package or data source configuration. Use the configuration key editor to add or edit the custom.base_template key, and set the value. This can be set to any valid String value. Default value custom.base_template=none Notes Changing this will not change the template type used, rather it only shows the template that was used when the data source was created. See also Custom data source