Currently, this is displayed on the calculated expressions white page "Calculated expressions are not currently supported in ArcGIS Enterprise." This would be very helpful when collecting field data using Field Maps. A lot of our polygon layers (utility districts) are required when collecting field data. To have them automatically generated would increase field data collection efficiency. Our utility district layers (water, sanitary, and storm) would automatically generate the point layer fields (hydrants, manholes, catch basins, etc.).