I was able to add and remove the agent group from the current existing queue using Set-CSRgsQueue command. Is there a way to insert the agent group using same command?

Hi,

You can use the following Lync Server Management Shell:

Set-CsRgsAgentGroup -Name "<agent group name>" -Parent $serviceId [-Description "<agent group description>"] -[AgentAlertTime <# seconds until call is routed to next agent>] [-ParticipationPolicy <Formal | Informal>] [-RoutingMethod <method for routing calls>] [-AgentsByUri("<first agent's SIP address>","<second agent's SIP address>")];

Best Regards,
Eason Huang