I export step files from SharkFX since this the only way the objects retain their names.
Often I boolean unite objects that does not touch, like the four legs of a table, in order to reduce complexity. However non-touching objects that I boolean unite in SharkFX import separately and loose their original names. I wonder if it is a limitation in the step format or a bug in either application.
Btw I strongly recommend everybody to check out the 3d apps Viacad and SharkFX (same thing simple and advanced versions). It's the best cad modeler at it's price range.
Claus
We only read what's written into the file. Sounds like the names are not getting written into the file.