The commands for changing, and viewing flags on objects mobiles and locations
are oflags, lflags, sflags, pflags, mflags. These allow you to query something
by typing oflags <obj>, or to set/unset a flag by typing mflag <mob> true|false

  List of exactly what flags of each type are available can be gotten by
typing list flag_type, eg list oflags. New ones can be defined and old ones
removed with undefine. For help on what each flag does, ask one of the gods
or higher powers of the mud you intend the zone for, they will be able to
answer you. Flags vary from mud to mud.