group.add_option("--instrument",metavar="name",help="The detector from which the --reference-psd and --frame-cache are loaded (require).")
parser.add_option_group(group)
group=OptionGroup(parser,"Place Holder Options","There are no needs to input anything")
group.add_option("--reconstruction_segment_list",metavar="None",help="There is no need to input anything into it, it will be automatically filled if --injection is provided.")
group.add_option("--veto-segments",metavar="None",help="There is no need to input anything into it, it will be automatically filled if --veto-segments-file and --veto-segments-name are provided.")