Alternatively, by use of command line switches it can be made to manipulate lists of RA/DEC positions. The keyword 'ENTER' will put it into entry mode, in which a list of positions may be entered in one of three ways: positions may be entered at the keyboard with '~', '-' or '\' indicating continuation; a text file of positions may be entered; or a PSS results file may be given. Positions currently held in the system may be listed using the 'SHOW' keyword, and a position may be selected from the list to be the current position by using the 'SEL' keyword.
If entering RA/DEC see the section in 'User_interface' which explains the formats that may be used.
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