Stayput
Stayput is a flag that dictates whether an actor is allowed to leave its original sector or not.
In the default 1.5 CON files, these are the available STAYPUT enemies and their tilenumbers:
define LIZTROOPSTAYPUT 1682 define OCTABRAINSTAYPUT 1821 define COMMANDERSTAYPUT 1921 define PIGCOPSTAYPUT 2001 define LIZMANSTAYPUT 2121 define BOSS1STAYPUT 2631 define NEWBEASTSTAYPUT 4611 define BOSS4STAYPUT 4741