B9PartSwitch.ModuleB9PartSwitch.SetupGUI C# (CSharp) Method

        private void SetupGUI()
        {
            var chooseField = Fields[nameof(currentSubtypeIndex)];
            chooseField.guiName = switcherDescription;

            var chooseOption = (UI_ChooseOption)chooseField.uiControlEditor;
            chooseOption.options = subtypes.Select(s => s.title).ToArray();

            chooseOption.onFieldChanged = UpdateFromGUI;
        }