Here are the steps to create multiple trade areas around multiple locations:
1. Import a list of locations by using Import Data>Locations>Geocode Adresses. Please see the QuickStart document(s) about Importing Locations.
2. Once the locations are imported, go to My Data and select Locations. Select all locations you want and click on the gear icon
3. Next select Create Areas in the menu.
4. You will be prompted to create the areas you wish. Choose Time or Distance, create your multiple areas and save them.