Section box does not adjust

[JKspace424]

 The section box seems to be different from scope box in Revit 2025.  How do I adjust the section box in the 3D view?  It does not seem to adjust. 

[ToanDN]

If you cannot see the grips to stretch a section box then the view is associate with a scope box.  Set the scope box to None then you can stretch the section box manually.