# Select >> Use Cases ||20 ```js script import { html } from '@mdjs/mdjs-preview'; import { Required } from '@lion/ui/form-core.js'; import { loadDefaultFeedbackMessages } from '@lion/ui/validate-messages.js'; import '@lion/ui/define/lion-select.js'; loadDefaultFeedbackMessages(); ``` ## Pre-select You can preselect an option by setting the property modelValue. ```html preview-story ``` ## Disabled You can disable an option by adding the `disabled` attribute to an option. ```html preview-story ``` Or by setting the `disabled` attribute on the entire `lion-select` field. ```html preview-story ``` ## Validation A validator can be used to make it e.g. `required`. If you want to know how to do that, please take a look at our [validation examples](../../fundamentals/systems/form/validate.md).