group_arrow_prefix (bool, default: off) Show an “up” arrow prefix for group subitems

group_auto_mode (int 0-2, default: 1) Treats dots in object names as group prefix delimiter. 0: off, 1: put in existing groups, 2: create groups if they do not exist

group_full_member_names (bool, default: off) With group_auto_mode, either show full object names in object panel, or strip group name prefix from object name.