Thank you for your reply, Pete. I investigated the new functionality of linking properties from GIS, it works fine in 2D. But as soon as I want to assign properties from a three-dimensional map data (a cloud of points), with all the X, Y and Z coordinates properly defined, it fails: After linking with all layers of the model the properties seem to be averaged in the Z direction. Am I doing something wrong or is it intended so? I am using FEFELOW 6.0.