15.3 XON and XOFF ================= -- Command: xon ('C-a q', 'C-a C-q') Send a ^Q (ASCII XON) to the program in the current window. Redundant if flow control is set to 'off' or 'auto'. -- Command: xoff ('C-a s', 'C-a C-s') Send a ^S (ASCII XOFF) to the program in the current window.