Bind Tmux prefix to an unicode character?

Question

I'd like to bind the Tmux prefix to the unicode character  (while also keeping C-b).

I'we tried putting the following in my ~/.tmux.conf, but none of theese works

set -g prefix M-$ bind M-$ send-prefix

set -g prefix  bind  send-prefix

set -g prefix "" bind "" send-prefix

I'm on OS X Yosemite 10.10.3, using a Danish keyboard layout.

Answer 1

tmux only binds "single" characters (8-bit) plus a few special keys which can be found in the terminal database.

The manual is a little vague:

tmux allows a command to be bound to most keys, with or without a prefix key. When specifying keys, most represent themselves (for example ‘A’ to ‘Z’). Ctrl keys may be prefixed with ‘C-’ or ‘^’, and Alt (meta) with ‘M-’. In addition, the following special key names are accepted: Up, Down, Left, Right, BSpace, BTab, DC (Delete), End, Enter, Escape, F1 to F12, Home, IC (Insert), NPage/PageDown/PgDn, PPage/PageUp/PgUp, Space, and Tab.

However, this has been discussed before (along with the ctrl and alt modifiers):

• tmux: trying to bind utf8 key
• How do I bind the tmux prefix to a Super?