Delphi window

[question]

Hello,

I am using Delphi 2010 and facing some problem to open multiple window for example , when I run the program then i see the main window with some navigation buttons which are linked to another window , but the problem is: I cannot open multiple window by minimizing one after another, I always need to close the currently opened window in order to open the other one, I have tried to change the value from FormStyle property, but i am not successful,could you please give me some suggestion to solve this problem.

I would be thankful for your reply