when lpp=list("prBoundary" "boundary") ?
I mean, what's the cellView~>prBoundary supposed to do?
I don't understand the question. The lpp attribute of a shape (so what you get when doing cellView~>shapes~>lpp) is a list of layerName and purpose - that is the same in OA as in CDB. Why would it be an object now?
The change with OA was to implement specific objects for things where previously shapes on particular layer purpose pairs had special meaning.