Here are the steps to create multiple trade areas around multiple locations:
1. What you can do is place all your locations into the Excel spreadsheet and import them all at once by using Import Data>Locations>Geocode Adresses tools. Please see attached QuickStart document.
2. Once locations are imported, go to My Data and select Locations. Check off all locations and click on the gear icon
3. Next select Create Areas in a pop-up selections menu.
4. The following step will prompt you to select your areas. Choose Time or Distance, create your multiple areas and save them.