In the Floor Plan Cut Plane Settings Dialog, try to set the Show Down To value to a lower value, such as -4' or something.
What is your Story Height on Story 1? Because the value needed will depend on that.
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The floor is at 17 ft but the element I try to place is 3 ft below the floor like a roof object on a lower floor I need to see on all foors from here upward.
Set the Show Down to field to Story(s) below and in the appearing text field on its left, write a value of the difference between you highest Story and Story 1. So if your highest Story is Story 4, you would enter 3.
That should work.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD 2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac27
Thanks it works but the logic is not transparent in the interface. The interface should state that id considers a default view from the top story downward