add_object_to_sim Not Found

[coolp4n]

'Case' object has no attribute 'add_object_to_sim' Hi there. My DSPH Version is "0.6.1.2102-24-04" When I create a new case based on an existing Freecad Document, it would call the function ("on_new_from_freecad_document") from mod/widgets/dock/dock_pre_processing_widget.py. In this function, the instance(Case.the()) calls a instance method --"add_object_to_sim". But it's strange that I cant find any method named after 'add_object_to_sim', even in the whole project. Looking forward to your reply asap. Thanks a lot