No problems asking about such things. That’s why the Forum is here.
You can export the group centroids from ‘File | Export Evaluation Data | Row Group Statistics’. The centroids are a part of this file. Just read it into Excel and you will see the layout. The table is variable by group by statistics. It is basically a 3d-table that has been compressed the 2d so it needs a little editing if you want to re-import the group centroids (means in this case) as variables.
I note that there isn’t a specific entry in the help for exporting group CENTROIDS, so I’ve now added one for v3.04 which really should be out very soon (a free upgrade to existing users).
Information is under ‘Group Statistics | Export’ and ‘Export | Group Statistics’.