You can have a role inherit certain properties from one or more existing role https://docs.splunk.com/Documentation/Splunk/8.0.5/Security/Aboutusersandroles

https://docs.splunk.com/Splexicon:Searchpeer
"A Splunk platform instance that responses to search requests from a search head. The term "Search peer" is usually synonymous with the indexer role in a distributed search topology..."

https://docs.splunk.com/Documentation/Splunk/8.1.1/Data/Monitornetworkports Reference:
Bypassautomaticsourcetypeassignment

After an app is downloaded, it resides under $SPLUNK_HOME/etc/apps on the deployment clients. But it resided in the $SPLUNK_HOME/etc/deployment-apps location in the deployment server.

https://docs.splunk.com/Documentation/Splunk/8.0.5/Forwarding/Forwarddatatothird-partysystemsd