MSG_DOCUMENTINFO_TYPE_BEFOREMERGE_RESULT

MSG_DOCUMENTINFO_TYPE_BEFOREMERGE_RESULT_CANCEL	Allows to cancel the merge.
MSG_DOCUMENTINFO_TYPE_BEFOREMERGE_RESULT_MERGE	Default, as before, just merge.
MSG_DOCUMENTINFO_TYPE_BEFOREMERGE_RESULT_NEWSCENE	Overwrites the merge flag and loads the scene as opened with load. In that case the message MSG_DOCUMENTINFO_TYPE_MERGE will not be send to the original document but a MSG_DOCUMENTINFO_TYPE_LOAD message instead.