Luckily, solution was found. Here it is:
- Edit your ~/.tmux.conf and add lines:
set-window-option -g xterm-keys onIf you don't want to make it permanent just yet, do
C-b :set-window-option xterm-keys on
- Reload your config in tmux by doing
C-b :source-file ~/.tmux.conf
Problem solved - at least in my scenario, now I have access to my precious c-left and c-right.