The `F1' key will bring up a simple on screen editor of the allsky program parameters. The values cannot be saved to a file at this time and will only persist for the duration of the program's execution. Allsky can be set to generate subsets of the sky for certain declination limits. However only the declination can be chosen in this manner. All values of Right Ascension from 0h-24h will be plotted. The Postscript output will automatically duplicate the screen display.
See Figure 
on p.