You can access your account settings by clicking on your username in the top right corner of the navigation bar. Here you can edit your user details such as your name, email address, and language settings.
You can also select the auto-save option for the datasheet editor. In this case, when you switch between sections in the datasheet editor, your changes will be saved automatically. By default this option is unselected and you have to save each section in the datasheet editor manually.
To save you changes in your user settings click the button Save changes. To cancel the operation click Cancel. In this case all changes made will be discarded.