My tmux config, changes prefix key from C-b to C-t so it won't interfere with emacs bindings, enables mouse mode

.tmux.conf

# restart tmux by:
# $ tmux kill-server

unbind C-b
set -g prefix C-t
bind C-t send-prefix

set-option -g mouse-select-pane on
set-option -g mouse-select-window on
set-window-option -g mode-mouse on

Fav shortcuts:

C-t + % - Splits window vertically
C-t + " - Splits window horizontally
C-t + Alt + Up | Down | Left | Right - Resizes window
C-t + Up | Down | Left | Right - Focus on window