The Webydo studio will automatically save after each edit you make.
You can hover your mouse over the save icon to view the last time the save was recorded.

To see how your site will look when it is published to the web, click the Preview button.

Click the Publish button to make your site available on the web. 

To exit, click the Dashboard button at the top of the screen. This takes you to the list of websites you have developed so far in Webydo.