To send any Makers Empire design to The Polar Cloud, you will firstly need to link your accounts in the Settings page of Teachers Dashboard.
Once this has been done, you will now see an extra option when clicking on the Export icon under each design.
Once the file has been sent to The Polar Cloud, you will see a button that links you directly the specific page:
The pink button above will take you to the Polar website, where you have the option to print/download/share/edit the design.