To get a list of agents in a skype work group run the following command via PowerShell:
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Get-CsRgsAgentGroup | select Name, @{Name=’AgentsByUri’;Expression={[string]::join(",", ($_.AgentsByUri))}} | Export-Csv agent-export.csv
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This can then be opened in Excel and manipulated to be used easier..
Open in Excel and "text to data" the AgentsByUri column, copy and then paste with "transpose" option to get in a nice format.