Symbol: KEYC_USER
usr.bin/tmux/key-string.c
206
return (KEYC_USER + user);
usr.bin/tmux/key-string.c
422
snprintf(tmp, sizeof tmp, "User%u", (u_int)(key - KEYC_USER));
usr.bin/tmux/tty-keys.c
539
tty_keys_add(tty, ov->string, KEYC_USER + i);