CUSTOM(OPCS)		Optical Printer Control System		CUSTOM(OPCS)

    NAME
        custom - custom commands configured by the local site engineer

    OVERVIEW
        These are recommended custom commands, which are best implemented
	by the local site's engineer during setup, using RUNCMD(OPCSDEFS).

        These are commands not built into OPCS, but rather added on during
        loading of the OPCSDEFS.OPC file, and assigned to scripts.

        TYPICAL CUSTOM COMMANDS
	-----------------------
	    load   - Unseat projectors for loading
	    lineup - Seat camera for lineups
	    unlock - Unlock motors for manual adjustment
	    ycm    - Y/C/M shooting

	For more, see the scripts in the RUN directory, e.g. .\RUN\LOAD.RUN
	For example, the 'ycm' custom command is implemented as three files:

	    ycm.run  -- YCM 'runcmd' script
	    ycm.hlp  -- YCM script's help file (describes command, args)
	    ycm.vrp  -- YCM script's velrep file (velocities for YCM shooting)

	There are example versions of these commands that come as part
	of the software, but you can define your own too. The RUNCMD 
	definitions are in the opcsdefs.opc file (commented out), and 
	the associated '.run' files are in the work\run\* directory.
	
	Simply edit the opcsdefs.opc file, and uncomment or create the 
	commands you need, and modify the .run scripts to suit your needs.

	Most of the 'example' commands come with man pages and/or .hlp
	files. Please refer to those for more information.

        Custom commands that have man pages are:
            LOAD(OPCS)     - unseat projectors for film loading 
            LINEUP(OPCS)   - seat the camera for lineups 
            UNLOCK(OPCS)   - unlock motors for manual adjustment

    SEE ALSO
        RUNCMD(OPCSDEFS) - define your own OPCS command as a RUN script
        DOSCMD(OPCSDEFS) - define DOS commands that dont need the ! prefix
        HOME(DOCS)       - external command to home the motors

    ORIGIN
	Gregory Ercolano, Venice California 04/12/98