How to export a 3D assembly model from VC without losing hierarchy?

Hi, there! I would like to export an assembly model from Visual Components and import it into another MCAD software and regenerate an assembly model in it. I export in the format of .step, however when I import the .step file into the MCAD software, it only has one geometry block of the whole model but without hierarchy.
Can Visual Components realize the function of exporting 3D assembly model with hierarchy?