Use default: Specifies whether this screen's askiaweb layout will be based on the *.QES file's default layout (options menu->internet options). If this option is not selected, the current screen's layout will be based on the values specified here in the header/footer tab. You can choose which settings to override (e.g. the header) and leave the rest of them "as is". For details of the properties in this tab, see Header/Footer (Internet settings).