OK, here's an example.  Let me know if this does/doesn't work:

You'll need to copy and paste the code below into notepad and save as a text file.  Then change the extension to pz2.

You'll need to modify the "readScript" lines below to reference the pz2 files for each of the breast morphs you have.  You'll have to do that for the top section and the bottom section (below defaultPickBODY).

---

{
    version
    {
        number 4.01
    }
    readScript ":Runtime:libraries:[remainder of file name 1].pz2"
    readScript ":Runtime:libraries:[remainder of file name 2].pz2"
    figure
    {
        defaultPick BODY
    }
    readScript ":Runtime:libraries:[remainder of file name 1].pz2"
    readScript ":Runtime:libraries:[remainder of file name 2].pz2"
}

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