Possible to Assign Security Groups via Powershell?

[mostau]

Possible to Assign Security Groups via Powershell?

I am wondering if the new versions allow folder security default groups to be set via powershell yet.

I have a hierarchy of several thousand customer folders each containing 16 or so sub folders.  I would like to change the default security at each sub folder level using 2 different security groups.  One group should have read of the connections and the 2nd group should have full control (i.e. the ability to create new connections in the folder).

Manually doing this trough the UI will take many hours so I am looking for a way to script this.  Thanks for any help.