DW recreate custom list field options

CustomFieldListOptions.cs

using Dynamicweb.Controls.Extensibility;
using Dynamicweb.Core.UI.Icons;
using Dynamicweb.Ecommerce.Products;
using Dynamicweb.Extensibility.AddIns;
using System;

namespace Dynamicweb.Controls.Examples
{
    [AddInTarget("/Admin/Module/eCom_Catalog/dw7/PIM/PimProductList.aspx")]
    public class CustomFieldListOptions : RibbonBarAddIn
    {
        private RibbonBar ribbon;
        public CustomFieldListOptions(RibbonBar ribbon) : base(ribbon)
        {
            this.ribbon = ribbon;
        }

        public override void Load()
        {
            RibbonBarGroup ribbonBarGroup = base.CreateDefaultContainer();
            ribbonBarGroup.Name = "CustomFields";
            var recreateListWithOptionsSet1Button = new RibbonBarButton();
            recreateListWithOptionsSet1Button.Click += RecreateListWithOptionsSet1Button_Click;
            recreateListWithOptionsSet1Button.EnableServerClick = true;
            recreateListWithOptionsSet1Button.Text = "Options set 1";
            recreateListWithOptionsSet1Button.Icon = KnownIcon.AddCircle;
            recreateListWithOptionsSet1Button.Size = Dynamicweb.Controls.Icons.Icon.Size.Medium;
            ribbonBarGroup.AddItem(recreateListWithOptionsSet1Button);

            var recreateListWithOptionsSet2Button = new RibbonBarButton();
            recreateListWithOptionsSet2Button.Click += RecreateListWithOptionsSet2Button_Click;
            recreateListWithOptionsSet2Button.EnableServerClick = true;
            recreateListWithOptionsSet2Button.Text = "Options set 2";
            recreateListWithOptionsSet2Button.Icon = KnownIcon.AddToPhotos;
            recreateListWithOptionsSet2Button.Size = Dynamicweb.Controls.Icons.Icon.Size.Medium;
            ribbonBarGroup.AddItem(recreateListWithOptionsSet2Button);

        }

        protected void RecreateListWithOptionsSet2Button_Click(object sender, EventArgs e)
        {
            var ListFieldId = "FIELD13";
            
            var options = new FieldOptionCollection();
            options.Add(new FieldOption() { Name = "x1", Value = "x1" });
            options.Add(new FieldOption() { Name = "x2", Value = "x2" });
            options.Add(new FieldOption() { Name = "x3", Value = "x3" });
            RecreateCustomListFieldOptions(ListFieldId, options);
            
        }

        protected void RecreateListWithOptionsSet1Button_Click(object sender, EventArgs e)
        {
            var ListFieldId = "FIELD13";
        
            var options = new FieldOptionCollection();
            options.Add(new FieldOption() { Name = "y1", Value = "y1" });
            options.Add(new FieldOption() { Name = "y2", Value = "y2" });
            RecreateCustomListFieldOptions(ListFieldId, options);
        }

        private void RecreateCustomListFieldOptions(string fieldId, FieldOptionCollection options)
        {
            var field = new ProductField(fieldId);
            Ecommerce.Common.Application.KillProductFields();
            FieldOption.DeleteAll(fieldId);
            foreach (var opt in options)
            {
                opt.FieldId = fieldId;
                opt.Save();
            }
            FieldOptionTranslation.DeleteExcessOptions();

            foreach (var language in Ecommerce.Services.Languages.GetLanguages())
            {
                foreach (var opt in options)
                {
                    var translatedOption = FieldOptionTranslation.GetTranslatedOption(opt.Id, language.LanguageId);
                    if (translatedOption == null)
                    {
                        translatedOption = new FieldOptionTranslation()
                        {
                            LanguageId = language.LanguageId,
                            OptionId = opt.Id
                        };
                    }

                    translatedOption.Name = opt.Name;
                    translatedOption.Save();
                }
            }
            FieldOptionTranslation.ClearCache();
        }
    }
}