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&gt; 1. What is the general recommendation going down this path? E.g. should we extend existing entities/aspects, creating new ones or squeezing data into <https://github.com/datahub-project/datahub/blob/master/metadata-models/src/main/pegasus/com/linkedin/common/CustomProperties.pdl|CustomProperties>? (We do need a separate UI with custom rendering).  :thread: 

I suspect your requirements will align with the broader community's requirements here, so let's consider re-using or extending an existing entity / aspect.

This one : <https://datahubproject.io/docs/generated/metamodel/entities/dataset#operation-timeseries> is a good place for operational info about a dataset