ESS reader Bernard wrote in with a correction in my previous content on Sublists:
Also, r.Record.selectLine and selectNewLine only works when dynamic is true…I found that out the hard way… 🙁
Some further testing in my environment confirms that the N/record’s selectLine and selectNewLine API methods are only available when you are working with a record in Dynamic Mode.
If you are working in Standard Mode, I believe you will have to avoid using the *Current* API methods and simply use getSublistValue and setSublistValue instead.
Thanks for writing in, Bernard!