Yes I've tried and it works fine but I lose the single polylines.
I guess is the only way....I thought there was something that I didn't know.
I really appreciate your help.

Thank you

thank for asking me. Here are two screen shots. One is the extrusion of the null object imported from Autocad and the other one is the extrusion of a polyline copied from the null obj. I don't understand why the null object has a negative value of 200in and the single polyline has the same movement ...

Hey guys, I'm quite new to C4d and I'm having problems extruding correctly polylines in a null object. I've imported from autocad some polylines and I'm trying to extrude them. If I group them in a null object, select hierarchy, and I enter the movement of 220in, it doesn't seem the extrusion has th...