Add value to custom columns

Hi,

Need help with adding fixed value to custom column, I am able to create a blank column with below

Get-Folder DEV | get-vm | Select Name, @{N='VMState';E={$null}}

But I would like to add a value to fixed value to custom column, please help

Example : Get-Folder DEV | get-vm | Select Name, @{N='VMState';E={Permanent}}