The global-overlay-keymap.js module provides support for key aliases and sticky modifier keys. To use this functionality, you must first ensure that this module is loaded by adding a line like
require("global-overlay-keymap.js");to your ConkerorRC file. Then to enable an alias, add a line like
define_key_alias("C-m", "return");to the file as well. To define a sticky modifier key, add a line like
define_sticky_modifier("escape", MOD_META);to the file.