Hello Ramesh,
You can customize the OptionCategoryProductOptionSelector.ascx file by
- Adding a custom control to the markup
- In the code behind PrepareSelectionControl() add case OptionCategorySelectionTypeEnum.FormControl
- Modify LoadSelectorOptions()
Or, you can modify OptionCategoryLelectionControlSelector.ascx
private List<string> GetExcludedOptions(OptionCategoryTypeEnum optionCategoryType)
-> do not add OptionCategorySelectionTypeEnum.FormControl into excluded options.
Best regards, Martin