Turn on Memory-Optimized GSI using REST API

Do anyone know how to turn on Memory-Optimized GSI using the REST API? I cannot find it in the documentation.

Setup/install instructions: http://developer.couchbase.com/documentation/server/4.5/install/init-setup.html#topic12527

Details on MOI:
http://developer.couchbase.com/documentation/server/current/indexes/gsi-for-n1ql.html#concept_bb5_khb_ys__memopt-gsi

Hey @knightnyc - You have to choose whether you want MOI or FDB secondary indexes at a cluster level, so you need to look at the installation section for the relevant REST APIs. -Will