She sticks to her initial plan.

No, life with such an ass would be an massive inconvenience, she would not even be able to fit into a chair... She remembered a usefull fuction and just selcted the command about her but and deleted it. Another pulse went through her and her ass dissappeared. Consequently she immediately fell down a few inches, hurting herself on the hard wooden floor.

"Ouch... At least I am no longer a freak."

As she looked behind her she was greeted by the same old skinny flat ass she was used to.
After getting up and getting used to her old weight again she takes a seat back at her desk and begins to work on her new body. After adjusting the sliders she takes one look at the changed settings.

User: Alice Smith

Cup Size: B, perky and perfectly round.
Ass Size: "Custom"
Thighs and legs: "Custom"

The settings she had adjusted with a slider were just listed as "Custom", still no good way to tell how it would actually look. Well she could try something to better visualize it. So she once more opens the command line.

Master PC is connected to a Hologram that is Positioned on the floor my room.
The hologram can be turned on and off only by me and will project an image of the person I am currently editing. Any changes I type into master PC will affect the hologram right away.

After taking another look into the guide she comes to the conclusion that this should work and presses enter.

Computing...
Identifying Keywords...
Inventing tech...

Once more does it pulse through reality and while at first it seemed like nothing had changed, the moment she turned aroudn she spots a little metal disk on the floor. The moment she touches it a model of herself naked gets projected right into the center of her room. Well not exactly herself the girl there had even less ass than herself right now...

Smelling the stew from downstairs she got to work swiftly. There would not be much time until they all had lunch and... well she was surely expected at that. So she kept adjusting the sliders, playing with all kinds of settings. Changing the size and shape and firmness of her ass, shifting the proportion between her upper and lower body towards the latter, Giving her deviously long and thick legs. At last she adjusted one more setting the sensitivity of her butt, shifting it up all so lightly... Having a sensitive ass was quite nice before after all.

She took a deep breath and watched her body on the hologram... It was right up her alley. And so she did it and pressed the enter key.