Esri Netherlands uses the attribute assistant frequently. It is a core solution in one of our products, The methods we use the most are: angle, for calculating the angle of a point object based on the underlining line object - for rotating the symbol expression, for calculating things generate id, for generating id's with a predefined prefix multifield intersect, for calculating one or more values keep up the good work, awaiting this solution throughout the whole platform, starting with ArcGIS Pro
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