Is there a simple powershell command to create groups with explicit members in SCOM from a list? Maybe a CSV file?

For Example:

Group A : "Network Devices in Location-Panama City"

Firewall 1- IP:10.xxx.xxx.xxx

Router 1 - IP:10.xxx.xxx.xxx

Switch 1- IP:10.xxx.xxx.xxx

Switch 2- IP:10.xxx.xxx.xxx

Switch 3- IP:10.xxx.xxx.xxx

I have 1,000's+ of network devices and need to assemble them in gro

1) Creating Groups in SCOM 2012 with PowerShell
http://blogs.msdn.com/b/rslaten/archive/2013/06/06/creating-groups-in-scom-2012-with-powershell.aspx
2) Modifying Explicit Group Membership in SCOM 2012 with PowerShell
http://blogs.msdn.com/b/rslaten/archive/2013/06/27/modifying-explicit-group-membership-in-scom-2012-with-powershell.aspx
3) Automate your group creation with Powershell
http://blog.coretech.dk/kra/automate-your-group-creation-with-powershell/
Roger