You certainly can connect your domain to your site.
To connect a domain:
1. Click the green PUBLISH button at the top right corner of the editor.
If you haven't registered already or saved the site, you will be asked to do so.
2. Select the option to connect an existing domain.
3. Insert your domain name.
4. You will then need to configure your domain to point to your new website. Follow the steps in the email we sent you to connect your site to a domain or click here for more information about how to configure your domain to point to your website.
If you need assistance at any point, please do not hesitate to contact our support team.