Enums

Declare the property as your enum type. The engine stores it as an integer and fills in the enum's names (FullEnumTypeName, LegalValues, LegalValueNames), so the admin UI and facets show names rather than numbers:

public enum EventStatus { Draft = 0, Published = 1, SoldOut = 2, Cancelled = 3 }

[IntegerProperty(Indexed = true)]
public EventStatus Status { get; set; }

Arrays of enums use [EnumArrayProperty], which gets the same names:

public enum AccessibilityFeature { StepFree, HearingLoop, AccessibleToilet }

[EnumArrayProperty(Indexed = true)]
public AccessibilityFeature[] Accessibility { get; set; } = [];