Let's say that I have two page content types PageA and PageB. Both of them are having property defined like that:

[EditorDescriptor(EditorDescriptorType = typeof(CollectionEditorDescriptor<OfferDetailsItem>))]
public override IList<OfferDetailsItem> OfferDetailsItems { get; set; }

with OfferDetailsItem defined like that:

public class OfferDetailsItem
{
   [Display(Order = 1)]
   public string Label { get; set; }

   [Display(Order = 2)]
   public XhtmlString Value { get; set; }

   [Display(Order = 3)]
   public bool Large { get; set; }
}

[PropertyDefinitionTypePlugIn]
public class OfferDetailsItemPropertyList : PropertyList<OfferDetailsItem>
{
}

I would like to customize TinyMCE editor for Value property of OfferDetailsItem class. I would like to do this depending on page context so there is different toolbar config when its used on PageA and different when its used on PageB.

I tried to use CustomEditorDescriptor for XhtmlString TargetType and override:

public override void ModifyMetadata(ExtendedMetadata metadata, IEnumerable<Attribute> attributes)

but in this case metadata.Parent is null so I can't reach content page context. For properties that are not collections this is possible.

Do you know if there is any other way to deal with this?