I followed the docs at https://docs.developers.optimizely.com/content-management-system/docs/property-value-list but I can't get my custom editor to work witin a list using ListItemUIHint.

I have a custom inline block type defined as this:

[ContentType(AvailableInEditMode = false, GUID = "808cffcb-be56-4870-8804-31bfd8c2f8a3")]
public class EstateIdentifierProperty : BlockData {
    public virtual string? Identifier { get; set; }
    public virtual string? Description { get; set; }
    public virtual string? ThumbnailUrl { get; set; }
}

For which I have created a custom property editor which I register like this.

[EditorDescriptorRegistration(TargetType = typeof(EstateIdentifierProperty), UIHint = "EstateIdentifier")]
public class EstateIdentifierPropertyEditorDescriptor : EditorDescriptor {
    private const string _editingClient = "cool-project/editors/estate-identifier-editor";

    public EstateIdentifierPropertyEditorDescriptor() : base() {
        ClientEditingClass = _editingClient;
    }

    public override void ModifyMetadata(ExtendedMetadata metadata, IEnumerable<Attribute> attributes) {
        ClientEditingClass = _editingClient;

        base.ModifyMetadata(metadata, attributes);
    }
}

I then added this property to my page

    [Display(Name = "Single Custom Editor", Order = 4)]
    [UIHint("EstateIdentifier")]
    public virtual EstateIdentifierProperty? EstateIdentifier1 { get; set; }

Which in turn renders my custom editor fine as seen below.

Now I want to have multiple of these so I tried using the new "ListItemUIHintAttribute" to get this editor in a collection like this.

    [ListItemUIHint("EstateIdentifier")]
    public virtual IList<EstateIdentifierProperty> EstateIdentifiers { get; set; } = new List<EstateIdentifierProperty>();

But this just renders a plan editor like below.

Is this supposed to be supported with "ListItemUIHintAttribute"? If it is, what am I missing?

/ Karl-Johan Sjögren