Gerard:
It looks like ArchiCAD is using the
Cut Line Pen of the host
Wall (normally this line would align with the face of wall) for this line. I do not see a way to alter this without getting into the scripts of the door, which are very complex. One workaround is to cover the line with a white line, then cover that line with a line that matches the Minimal Space line.
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