AOM: how do you differentiate between sibling C_OBJECT if both are ARCHETYPE_ROOT and have the same archetype_id?

But name is constrained (at least that’s what I assume you meant with that short-hand!). ADL doesn’t differentiate between different attributes being constrained. Any constraint is a constraint.

Something like that. Maybe it could do SECTION.ad-hoc-ovl1 and SECTION.ad-hoc-ovl2 to make it easier to spot overlays.

See previous comment above!

Thanks Sebastian - we got close to the same point before, and indeed, Heath’s suggestion in that thread is a nice solution I think.