Select this option to show the changes to the navigation bar immediately when the settings of the Items Tab or the Style Tab have been changed. This may slow down the response of the dialog a bit as every minor changes will be now generated. If there are several changes need to be made at the same time, it is better to turn off "Live Preview" and use the "Refresh" button to update the navigation bar.
Set the background color of the Preview pane. This setting will not have any impact on the navigation bar. Some of the navigation bars are translucent. They can only be viewed with background color.
Select this option to either open a link in a new browser window or to a custom target. Custom target can be "_blank", "_self", "_top" or the name of an Inline Frame (IFrame).
_blank
Open the linked document in a new window or tab
_self
Open the linked document in the same frame as it was clicked
_top
Open the linked document in the full body of the window