How to change gender in GAS app?

here is Gaz app so if you go to your profile and tap edit profile how to change gender just tap on gender and then just tap here you can select boy girl or non-binary uh add in your gender helps create your balls so there you have it so you can do that as I understand it's only possible to do it once or maybe I'm not sure I was reading in the refaq section that you can change first and last name um John and then school and grade like only once and then you need to conduct support but it didn't say anything about gender so there you have it