Need Zip codes map layer in Classic OAC
We have a requirement to create map reports at the zip code level in OAC. Based on the requirements, we need to build these reports in classic BI (not DV). We have added the GeoJson file from https://www.oracle.com/in/business-analytics/data-visualization/geo-layers/ to create a custom map layer and it is working fine in DV. Can anyone help us with how to add the same layer in classic BI?