With the new ArcGIS Dashboards Beta, arcade is now available, but in a limited way. When enabling arcade on infographic using the statistic option, the only global variable I have access to is a result of the same operator and field selection in the standard infographic widget. So If I choose statistic and select SUM on FIELD_1, I get the global variable $datastore[sum_FIELD1]. I need to have access to the globals for all fields FIELD_1, FIELD_2...FIELD_n. Ideally, I would have access to any statistic on any field in my globals, allowing me to create more versatile expressions in my widget.