HYDRA-120 Questions: supports 6S cutoff ??

[himalaya]

I am going to config my EP boat, CC's HYDRA-120 seems to be a good fit, but I found its specs are confusing:

Q1)
Spec says the Hydra supports 6S LiPo with external BEC, but inside its manual, the HIGHEST Cutoff Voltage is only 12V for 4S. See the picture below
Does this ESC support 6S LiPo auto cutoff? How to setup the right voltage value for cutoff?

Q2)
Will CC have a built-in switching BEC version coming out? It could be obviously easy for similar technique has existed in MMM.

Thanks Guys.