CB 6.6 Flex Index Getting started.

https://docs.couchbase.com/server/6.6/n1ql/n1ql-language-reference/flex-indexes.html

I wanted to use the new Flex Indexing in local CB 6.6 but had a hard time using it.

Reached out to N1QL channel and finally was given guidance on the correct change to FTS index to use FLEX INDEX in N1QL.  It was hard to find the correct setting to change because the "Advanced" settings is hidden by default when creating and the docs and blogs don't says that much about "default_analyzer": "keyword"  

The sticking point for me was it was not clear that I had to change the Index Settings=>Advanced=>Default_analyer to "keyword". A simple picture like attached