public AddablePropertyListItem(AppOptionDeclarationViewModel optionDeclVM, string label, AddableAppOptionPropertyType type)
		{
			OptionDeclVM = optionDeclVM;
			PropertyTypeLabel = label;
			PropertyType = type;
		}
		internal void AddProperty(AddableAppOptionPropertyType propertyType)
		{
			if (Declaration is AppOptionDeclaration)
			{
				(Declaration as AppOptionDeclaration)
					.AddProperty(id => propertyType.ToOptionProperty(id, "name"));
			}
		}