Export model sets as seperate *.bip files

[germannick]

I am sure someone has already a work around or a script to share.
Here is the thing. I have several *.bip files with about 40 model sets and still growing (had I known from the beginning that this rendering concept would take this proportion, I would have saved individual files right from the start). Anyways, each model set is properly named with the name of the containing product.
I would like to export each model set automatically as an individual *.bip file, just like Photoshop offers the export "layer to files"

Unfortunately I am absolutly clueless about Python scripting