Open a new file for postscript output. The file name has to be entered in the console window where the program was started from. After opening this file you have to redraw everything you want to see in your postscript picture. Note: One postscript file will contain only one image, written as EPS (encapsulated postscript). If you need multiple pictures you will have to close the first file and open a new one. Once a file has been opened the menu entry will be changed to [PSclos]. The postscript file will be closed explicitly by selecting [PSclos] or automatically by selecting [goon] to leave the graphics window.