Add-Member

1st Microsoft Example

Add-Member [-MemberType] <PSMemberTypes> [-Name] <String> 
[[-Value] <Object>] [[-SecondValue] <Object>] -InputObject <PSObject> 
[-Force] [-PassThru] [-Verbose] [-Debug] [-ErrorAction <ActionPreference>] 
[-WarningAction <ActionPreference>] [-ErrorVariable <String>] 
[-WarningVariable <String>] [-OutVariable <String>] [-OutBuffer <Int32>]