PowerShell
Name
A friendly name for this action (will be displayed in the actions workflow area).
...
The path and file name of the PowerShell script you want to execute. [-Command]
Script Arguments
The arguments you want to pass to your script. e.g. -username fflintstone -workspace '$Workspace'.
Note that parameters : Parameter values containing spaces (or expanding to values containing spaces) must be delimited with single quotes.
...
The path and file name of the console script you want pass to PowerShell. This setting is optional. [-PSConsoleFile]
PowerShell Version
Adds the -Version argument to the PowerShell command line. [-Version]
Using
The Using drop down is populated with any property collector whose namespace matches the pattern defined by the PowerShell action. The pattern for this action is ^PowerShell.*
...