On Tue, 23 Jan 2024 16:05:28 +0000 Donald Hunter wrote: > Sub-message selectors could only be resolved using values from the > current nest level. Enable value lookup in outer scopes by using > collections.ChainMap to implement an ordered lookup from nested to > outer scopes. Meaning if the key is not found in current scope we'll silently and recursively try outer scopes? Did we already document that? I remember we discussed it, can you share a link to that discussion?