Object_Tools_Scale_Objects - Diffeomorphic/import_daz GitHub Wiki
Scale Objects
In DAZ Studio distance is measured in units of centimeters. The parameter Unit Scale in the global settings determines the Blender units. The default value is Unit Scale = 0.01, which import scene in units of meters.

The unit scale is displayed in the Utilities panel.

To change the unit scale, press Change Scale Objects and type in the new scale in the popup dialog.

This tool is different from merely scaling the armature, e.g. because it also affects material parameters with the unit of length, e.g. the bump distance.
Scale Materials
This tools only scales the material parameters but not the object itself.