Now select both of the rows with accounts and right click on any of them. The menu will open again. Go to Proxies and select Import Proxies.
Then browse to your Go Manager folder and select and open the file proxies.txt. It will prompt you for how many accounts to use per proxy. I advise that you use two at most, though some have gotten more to work. If you use more then you are likely to receive a temporary IP-ban which will prevent you from botting from that proxy for about an hour.