The Wizard functionality now gives you the ability to populate the wizard based on a file:
This will take you to pa page that enables you to use a CSV or excell file to populate the wizard, the format need to be as shown:
Once you have selected the file and clicked import it will show you the items added:
If you are happy with the selection you can then click on the button shown below and carry on using the wizard as per usual:
NB: Wizards are processed sequentially, so will be 'queued' and processed one after another.