Please accept my apologies for the late reply.
There is currently no counter-part of the DynamicLayer , but The shape layer will eventually take in this role. It will allow you to load GeoJSON fragments based on location.
We'll also add layer switching based on zoom level / map extent.
Do you have any additional details regarding your scenario. A screenshot perhaps? We'd appreciate it and it will help align our priorities with what is being done in the real world.
Documentation is pretty scarce at the moment, but we're working on it. Thank you for your patience.
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