Issue Description
You want to change the projection of the generic 3D perspective in Archicad to a two-point perspective.
Solution
1. Open View > 3D View Options > 3D Projection Settings.
2. On the Perspective Settings window check the option Use two-point perspective.
3. Click OK.
TIP: Don't forget to update your View from the View Map or the 3D Window Tab, using the Redefine with Current Window Settings command.