Hey mon,

Here is a Python script (based on a script by rjjack) for converting Material zones to Groups.  It doesn't work within Poser, so you may have to install Python onto your system. ( delete extension ".txt" from the attached file)

What to do:

Export your object to a directory and call it "object_export.obj"

Next,  copy the Python script to that same directory.

With Python installed, double click the script to run it.  The script will look for the file called "object_export.obj" and convert all materials to groups and save a new file called "poser_import.obj".

Import this new file into Poser and you're good to go.

Take care