Which window first

Hi everyone
I want to know what is the ultimate base setting that XOJO use to open the main window first
in the order iv created my main window the 3rd in the process
Now i’v got to put code in open event just to get this window opening first
I’v try the placement setting with no success…

Select your App object in the left hand column, then set the Default Windows property in the Inspector to the window you want first.

i’v search at the wrong level…(window)
Thank you