Once you are happy with the displayed section, you can close the section preview window using the close window button to the top right of the window. If the section has not been saved to the current project, you will be asked to enter a name for it. If you wish to save the section for subsequent use, such as plotting, enter a name and select the OK button. A new section with the entered name will then appear on the current project tree. To discard the section, select the Cancel button.