Changing content of Window after clicing the button

[oliwex]

Hi,

I am creating GUI in PowerShell so please give me an naswer in PowerShell language or powershellis-understand language.
I have GUI like below.

and The content in red rectangle is not changing. I changed only content of title. So there is no problem.

Below i have Grid which in every cell of a grid i have stackPane with few buttons and label.

I want to create something like menu, where i click the button on the grid.stackpane.button then the grid is REPLACED into other content like below.

The main point of that is the word replace,because now i do it by changing visibility, so the element is not perfect positioned.