tmux.conf

# remap prefix from 'C-b' to 'C-a'
unbind C-b
set-option -g prefix C-a
bind-key C-a send-prefix

bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

set-window-option -g mode-keys vi

bind-key -T copy-mode-vi v send-keys -X begin-selection

# source .tmux.conf file
bind r source-file ~/.tmux.conf \; display "Configuration Reloaded!"

# Allow mouse interaction
set-option -g mouse on