SetSaveLocation
status_t SetSaveLocation(BDataIO* stream);
status_t SetSaveLocation(const entry_ref* ref);
status = fShelf->SetSaveLocation(&mio);
fShelf->SetSaveLocation((BDataIO *)NULL);
void SetSaveLocation();
BPose::SetSaveLocation()
pose->SetSaveLocation();
pose->SetSaveLocation();
pose->SetSaveLocation();
pose->SetSaveLocation();
pose->SetSaveLocation();