Can't add Schema Registry Service with HDF 3.1.0.0 added to HDP 2.6.3.0

[#1]

I have a Ambari server installed HDP node that is only running zookeeper, HDFS, Yarn, and MapReduce2. I added the HDF Management Pack for 3.1.0.0 and wanted to install Kafka and Schema Registry. I realize kafka is already accessible with HDP, but I wanted to add the schema registry. When I went to add the kafka and schema registry services, I do not see schema registry as an available service. Ni-Fi, Ni-Fi registry and other HDF services are available, but not SAM or Schema Registry. Does anyone know why this would be?

[#2]

I guess 3.1.0.0 is also incompatible with 2.6.3. It's noted that HDF 3.1.1 added to HDP 2.6.4 doesn't support Schema Registry and SAM. https://docs.hortonworks.com/HDPDocuments/HDF3/HDF-3.1.1/bk_installing-hdf-and-hdp/content/ch_add-hd...