Good news, There is a brake setting for the FT ESC's.
Bad news, I don't know how to set it in "stick mode" (using your radio), off the top of my head.
Be careful when you are in programming mode. Those ESC's have a bidirectional capability. Once you set bidirectional on, you can no longer use stick mode to program the ESC.
The best way to program those ESC's is to buy whatever programming card is recommended. Its faster and simpler than stick mode and you can turn bidirectional on and off.
If you can't find the instructions for stick mode programming, try using the Emax esc instructions.