Yes, a SupaDupa boutique can be accessed from multiple different domain names.
​
For example, if your brand is "Vintage 50", you might have purchased the domain names vintage50.com and vintagefifty.com so that your users can find you regardless of how they spell your brand or type your domain into their browser.
​
SupaDupa allows you to designate one of your domains as the "Primary" domain that most closely matches your brand, so that if a user types in your other domain, they will be automatically redirected to your official brand domain.
​
Please note there is no additional SEO benefit from having multiple domain names.