Here are instructions to add Storefront to your existing account.
Click Add-On Services on the left.
Click Sell Online
Click Homestead Storefront in the top navigation.
Click Upgrade Now
Select the Storefront package you need and click Upgrade
Important: Your Homestead Storefront will automatically be associated with your primary web address. If you'd like to associate your Homestead Storefront with another web address please contact Customer Support before upgrading to Homestead Storefront.
Hope that helps!
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