The Hide highlit items option temporarily removes objects which are highlighted from the Genetic Map display. The Unhide hidden items option once again displays Genetic Map objects which had been temporarily removed from the display. The Export highlit keyset option creates a KeySet containing those objects of the Genetic Map display which had been highlighted. This will bring up a Genetic Map display of Chromosome 1. Now choose 'Highlight all' from the 'Highlight' menu.
All objects turn purple.
Choose 'Export highlit keyset'. This creates a 'KeySet' window containing all of the objects of chromosome 1. Now choose 'Hide highlit items' from the 'Highlight' menu. All Genetic Map objects except for the 'Locator Bar' and the 'Scale Bar' disappear. Now choose 'Unhide hidden items' from the 'Highlight' menu.