Migrate from ARCHICAD 16 and earlier.
In ARCHICAD 25, Walls, Zones and Columns can be toplinked to a particular story in the project. This means their height can vary as story heights change. Alternatively, they can be set as “Not linked”, so their height is fixed.
Walls, Zones and Columns migrated to ARCHICAD 25 from earlier-version projects will all be “Not linked”.