Working with Projects
The Save Project Tool allows you to save the changes that you have made to the map. To save your project, click on the Save Project tool and a dialogue box will appear in the information panel. Click the link to download a project session file (.ssn) and save it to your computer for later use.
You can now save all the additions you have made to your map. This will not only save the markup and uploaded files you have added to your map but also the open layers and the zoom parameters. Click on the and choose Save session now. You can then choose where to save the session file for later use.