Dear Baskar,
This is working as designed, APM Team Center only shows those components which are detected as Frontend\Backends and correspondingly agent sends required vertices\edges (relationship between frontend\backend) to the EM. As such I would only expect to see the .NET\Java Agents hostnames show in the perspective assuming they are reporting Frontend\backend data and are fully exercised, EPAgents will not be displayed in the Team Center UI. Is that what you are seeing ?
At a very high level APM Team Center provides same mapping capabilities as were there in Appmap\Triage Map in older versions however with lot of advanced features added on top of it including perspectives,filters, custom attributes, attribute rules,timelines etc. You can read more details here:
https://docops.ca.com/ca-apm/10/en/using/apm-team-center
Regards,
Kulbir.