I am sure I am late on the game for this feature request and I signed up for the private preview. Looking at the release notes on it at https://docs.microsoft.com/en-us/rest/api/searchservice/ and under key concepts I don't see anything about making an indexer for Azure Files. I thought that was something that could be done to make a new Data Source for Azure Search services? I was looking at this code sample too to see if maybe I needed to write a custom Indexer somehow. I know in SQL Server there are FileTables but they are not part of Azure SQL. Is it a matter of defining a connection string specific to Azure Files?