I will explain what I want to achieve from this image:

When someone starts the application for the first time, the configuration activity will open, and I want him to have a few steps. I think that creating activity for each part of the installation is not the best solution. I would prefer that the activity simply transforms into part 2 without any animation or with the help of a sliding animation, and I want it to only change part of the setting by pressing the buttons. What is the best / easiest way to achieve this? Thanks for any answers.
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