Thanks JaideepBrar, for quick response.
As per my understanding, the available reports are using column list as per the below screenshot.
Now, consider the below scenario:
We have created some custom indexes under oak:index location, which we have added in our custom metadata schema for the asset
eg., /oak:index/damAssetLucene/indexRules/dam:Asset/properties/dcBrand having property
jcr:content/metadata/brand
Now, lets say I have to generate Download report for assets using the Download report provided. Once I go to configure columns step, I should be able to get Brand Column available as default which maps to property jcr:content/metadata/brand.
Kindly suggest any workaround.