This works for me:
unbind C-b
set-option -g prefix C-g
bind-key C-g send-prefix
but this does not:
unbind C-b
set-option -g prefix ½
bind-key ½ send-prefix
How can I use the ½ key as prefix?
$ tmux -V
tmux 2.6
$ locale
LANG=C
LANGUAGE=C
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=en_US.UTF-8
konsoleand tty2. Tmux 2.6. For the record: I type½with AltGr+6.konsole. What could be the difference between our systems?½?½key is now the one between Tab and Esc. Still works in tmux.