Override the URL to go to external site – SAM Support

Go to the page in SAM
Select Page from the SAM toolbar and click Edit Page Info.
In the Manual URL Override field, enter the URL for your new page, such as:
http://blog.employerflexible.com
If the page you're linking to has a different layout from the rest of your site, it's best to check the box for "Open in New Window". That way the user can view the content, close the window, and they'll return to your site.
Click Save.
Publish your site after making these changes.