Filing ACS application

Hi, I am new here, so don’t know if posting in the right thread or not. I have few questions as below. Experts, please guide me on these.

1- I have applied for ACS and got positive for ANZSCO code 261314. Now since, it doesn’t have options for 189 Visa, I am planning to re-file my ACS for ANZSCO 261313, as there is no chance to file 189 Visa with Anzsco 261314.

What should I give in the clarification for the same so it won’t affect my ACS?

2- The same thing I did in my wife’s ACS also as she is also working and in the same field as I am. Do I need to re-apply for her as well, or will it work if only I change it for myself?