NEW: Alembic Xform qL SOP (experimental; SOP-level variant of the same obj node)
Alembic Xform qL OBJ update (help card)
Attr Visualize qL SOP: added callback for marker auto-update on display flag
Merged work:
- Alembic Xform qL SOP/OBJ pair
- Attr Visualize qL SOP: added "Auto-Update on Display" (markers)