Laravel Idea is a plugin for PhpStorm. If you don't have it installed, it has the same free 30 days trial period. In the PhpStorms main menu: File | Settings (or Preferences) | Plugins | Marketplace | Search "Laravel Idea"

By default, plugin tries to locate composer.json file in the projects root and find "laravel/framework" or "laravel/lumen-framework" there. All plugin features work only if one of these requirements found, so it won't take resources and make additional indexing for non-laravel projects. This can be configured in settings:

Laravel directory option can help in cases when laravel installation is not in the root. Also plugin can be turned on/off manually.