Hiba:
You can create openings (not place Windows) into Morphs, in the Help files see: Virtual Building > Construction Elements > Morphs > Basic Morph Editing >
Push-Pull. Pushing a shape through the Morph to the opposite face will create a hole.
You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.
David