The Advanced tab provides infrequently used bottle options. Most of the settings available here will be automatically set to reasonable defaults.

Configure Bottle.  This button launches the Bottle Settings dialog.

Make Archive...  This button creates a compressed archive of the selected bottle. It is often prudent to make a backup archive of a bottle before installing new software or modifying bottle settings. Archives can be restored using the Add From Archive... button.

Open C: Drive in Finder.  This button will open a new Finder window displaying the contents of the current bottle's C: drive.

Make this the default bottle.  The default bottle is displayed in boldface in the bottle list. The default bottle is used by CrossOver to handle files and documents that are passed to CrossOver directly without any indication about which bottle should be used.