He went into his own settings, and changed the 'Gender' field to female, disabling reality shift on this change. A screen popped up. "Would you like to auto-adjust certain settings?" Jeff clicked the "Okay" button, which brought up a new screen.
It showed a bunch of options for what he could have the machine automatically generate based on how he currently is, alongside a bit of information for some of them. They all default to being checked, and he didn't need to do much to it...
❌ Name
✔️ Height
✔️ Penis size (NOTE: If unset, either leaves it there unchanged (MTF) or doesn't add one (FTM))
✔️ Breast size
✔️ Fertility (USUALLY changes nothing. Adjusts fertility of sperm if male, or the womb if female.)
❌ Sexual orientation (NOTE: Checking this will adjust to match. Example: A lesbian leaving this unchecked would still be attracted to women even after becoming male)
❌ Mental adjustment
✔️ Voice
✔️ Hair length
✔️ Pronouns
❌ Outfit
With that in place, he started the transformation. He felt a bit tingly and slightly numb, as he lost a few feet of height, and his chest expanded out. His manhood between his legs regressed into her body, a cute vulva in it's place, as her internal organs adjusted as well. Max looked on in wonder as it finished off, Jeff's hair ending up far longer than before.
He- Or, now, She, looked over her new body. The biggest surprise to her was how large her chest was. Jeff had expected something small, maybe even flat, rather than what she actually had... Which, according to the Chronivac, was supposed to be around 40G. "I could definitely have fun with these..."