Hello, Welcome to Micorosoft Q&A,
One more thing I want is when user clicks another button, the windows go back to the main windows as it was.
I'm afraid, you can't show the multiple view like above, currently, UWP has not supported to make ConnectedAnimation
for multiple view. And there is no code sample to implement this. If you do want this feature, please feel free post your requirement with windows feed back hub app.
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