At the top left you will see the toolbar:
The functions are:
- Save. Saves the module and stays in the current screen.
- Save & Close. Saves the module and closes the current screen.
- Save & New. Saves the module and keeps the editing screen open and ready to create another module.
- Cancel/Close. Closes the current screen and returns to the previous screen without saving any modifications you may have made.
- Help. Opens this help screen.