No header in custom pages

Hi ... .my problem is the following ... I have 2 custom pages defined for my installer. Both display the header image that i 've set for my installer. Is there any way in which i can exclude this header only in the custom pages ? I want to do this because i want to achieve a look like that given by the
MUI_PAGE_WELCOME (no header , bitmap holder on the left, using the same image , at the same scale).

The presence of the header in the custom pages means that i have to use a smaller picture. Also , i've set the left, top for the bitmap holder to 0,0. But still there is a space on the top and left of the holder , from the margins. Anyway i can make the placeholder be positioned right on the margins ?

P.S. Using Modern UI

The welcome and finish pages are InstallOptions, $PLUGINSDIR\ioSpecial.ini to be precise.

Stu

still don't see how this would help with my problem. My problem is that showing a custom page either by Page custom , or MUI_INSTALLOPTIONS_DISPLAY displays my ini created page , as a content in the a template that has the Header Image, which takes up space that i want freed .

You can look at that InstallOptions INI file and in Modern UI\System.nsh to see how it works on the welcome or finish page. To see ioSpecial.ini you'll need to run an installer with a welcome page.

Stu