### Prerequisites - [x] I have read the [Contributing Guidelines](https://github.com/ionic-team/ionic-framework/blob/main/docs/CONTRIBUTING.md#creating-an-issue). - [x] I agree to follow the [Code of Conduct](https://ionicframework.com/code-of-conduct). - [x] I have searched for [existing issues](https://github.com/ionic-team/ionic-framework/issues) that already include this feature request, without success. ### Describe the Feature Request I need to add <optgroup> and also the option to do search using <ion-select> with a modal interface. Below is the example link. [https://www.w3schools.com/tags/tag_optgroup.asp](https://www.w3schools.com/tags/tag_optgroup.asp) [https://codepen.io/rjleurck/pen/PxZKYr](https://codepen.io/rjleurck/pen/PxZKYr) [https://codepen.io/cbrewster/pen/PKKQyJ](https://codepen.io/cbrewster/pen/PKKQyJ) ### Describe the Use Case I need to add <optgroup> and also the option to do search using <ion-select> with a modal interface. Below is the example link. [https://www.w3schools.com/tags/tag_optgroup.asp](https://www.w3schools.com/tags/tag_optgroup.asp) [https://codepen.io/rjleurck/pen/PxZKYr](https://codepen.io/rjleurck/pen/PxZKYr) [https://codepen.io/cbrewster/pen/PKKQyJ](https://codepen.io/cbrewster/pen/PKKQyJ) ### Describe Preferred Solution _No response_ ### Describe Alternatives _No response_ ### Related Code _No response_ ### Additional Information _No response_