setw -g mode-keys vi
unbind-key j
bind-key j select-pane -D # Similar to 'C-w j' to navigate windows in Vim
unbind-key k
bind-key k select-pane -U
unbind-key h
bind-key h select-pane -L
unbind-key l
bind-key l select-pane -R
unbind C-b
set -g prefix C-w
bind C-w send-prefix