In this case templates are downloaded from P391D.HOS.DEMO.CNTL on DEMO_ID system and from P391D.HOS.SYSH.CNTL on SYSH_ID system. This is client independent.
Procman/HOS submits jobs which are a result of JCL templates substitution. Templates are skeletons of jobs with several variables (surrounded with ##) that are replaced with real values. This option configures a location from where these templates are downloaded. The definition in the sample below is valid for all clients (therefore there is an asterisk). You can define a set of templates for every client if you replace the asterisk with a client name.Below the asterisk or client there is an array that maps to the dataset where templates are located. Define this mapping for all your systems.