Hi @der ,
Fantastic choice to switch to Databricks AI/BI Dashboards! They are super awesome.
Unfortunately we do not have custom GeoJSON/choropleth support currently, but it’s a common feature request and internally tracked with DB-I-14646, DB-I-5257 and are considered for development. The roadmap does not specify a fixed timeline, but I have gone ahead and added a vote on this feature request by you, which will help to get them more attention.
Doc - https://docs.databricks.com/aws/en/dashboards/visualizations/maps#choropleth-options
Would you meanwhile, like to workaround by creating a mapping table where your custom region IDs are linked to the required built-in Databricks region level?
Thanks!