react-virtuoso Engine\Plugins\VirtualProduction\RemoteControlWebInterface\WebApp\Client\node_modules It is a virtual list component - it help the browser to render (to html) only what is visible in the viewport. We've had performance issues which could be fixed using this. https://github.com/petyosi/react-virtuoso/blob/master/LICENSE Licensees Git P4 Engine/Source/ThirdParty/Licenses/react-virtuoso_LICENSE.txt