bz-222 esc help

[darrin011]

Stock esc programming box or help
I need some help, we run a small private track, indoors in a donated building. As the track grows, so do the people, we've had 5 kids show up every week to watch, none of their parents can afford the hobby so we decided to look for decent cars at low prices as a group. So with that being said we purchased 5 bz222 buggies, at 49 dollars, threw in spare radios we had and provided them with the cars and each a used lipo, we keep our stuff in good condition and let them go. Our issue is, we managed to lock out reverse so we could teach them proper racing, and marshaling, all good stuff. My concern is not all programmable functions listed in the manual are accessible through the set up button, like setting the cutoff from 3.2v to 3.4v for safety purposes, brake bias, the mode to stop the cars at voltage cutoff instead of reducing power and dropping voltage lower. I've contacted HK numerous times in the last few days and yeah I didn't expect a super answer but something solid would have been cool. Bottom line is can someone post clear better direction on accessing all the functions on the 60a included esc, or better yet, give me a link to a program card that works on the esc for sure because their answer was here are 2 that MIGHT work... and I get it but we're on a budget too and we bought the buggies, and enough spare parts for them to run well into the summer at the least, so any help to make these cars right would be very much appreciated.

Thanks a lot
Darrin