Chart Wizard projects are saved when the "Finish" button is tapped.
If the project was created from the "New" or "Import" button then the Save dialog will be displayed.
A new filename can be entered by tapping the edit field at the bottom of the dialog, which will display the onscreen keyboard.
Tap the "Ok" button to save.
Projects are saved to Chart Wizard's document directory on your device (tap "Open" to reload later).