furryboffin:
To raise the model, go to the 3D Window, make sure all Layers and Renovation Statuses are visible, Select All, then use the
Elevate... command. You will then need to go to each Section and Elevation Window to move the 2D elements vertically the same distance.
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