The Survey Editor toolbar offers a variety of functions. All of these, except the Save button, are explained in separate articles linked below.
The Save button is self-explanatory: it is enabled when there are unsaved changes and disabled when there are none.
Left-side buttons
 | Restore and publish More about restoring last published and publishing the questionnaire |
 | Versions Read more about questionnaire versions here |
 | Consistency check Read more about the consistency check here |
 | Manage source code Learn more about editing, importing, and exporting source code |
 | Technical Read more about exporting the code and API keys |
Right-side buttons
 | Theme picker Learn how to change the theme of the questionnaire |
 | Validation Read more about validating the questionnaire |
 | Open questionnaire More about opening the questionnaire (in debug mode) |