Hide or show windows in smartforms throw a checkbox in a selection screen

Hi experts,

I'am new to ABAP, I'am wondering about how to via a selection screen we can hide or show a window in a smartform.

The scenario will be like this :

1 - The smart form contains 3 windows

2 - The selection screen contains 3 checkboxes (one for each window)

3 - If we check 2 checkboxes we will only see the 2 windows on the smart form.

Thanks.