C# clearing a form and creating a label?

Question

C++ / C#

I know it is possible through the form, but is it possible in another way?
In order not to create a new form, but to hide the program and open a new part, or on top of them.
Example program, calculator.
In the menu I choose, help and author.
It should go to the author in this form where the label will be, while closing all other functions.

Answer 1

For WPF, I would try to use a Frame for the window, and insert a Page with a calculator into it and give the ability to switch the content to help / author.
Sobsna, navigation is simple, so there should be no problems.

Answer 2

In WPF, I would make such a feature through layers. On one layer is a calculator, on the other is a label with the author. When choosing help / author in the menu, I would change the layer with the author to the top one, when returning, it would return the layer with the calculator up.