If the data basket feature is enabled, data consumers can add some assets to their data basket from the asset preview. For more information on the data basket and the assets it is available for, go to Requesting access to data.
If you open an asset preview and see the button Add to Basket, you can use the button to add the asset to your data basket. Once you added several assets to the basket, you can check out the basket, requesting access to the assets in your basket in one action.