For when you get tired of "send me a screenshot of the selected logging fields in IIS."

Get-IisLogFieldConfig.ps1

function Get-IisLogFieldConfig {
    [CmdletBinding()]
    param(
        [string[]$ComputerName,
    )
    
    PROCESS {
        foreach ($computer in $ComputerName) {
            Invoke-Command -ComputerName $computer -ScriptBlock {
                [System.Reflection.Assembly]::LoadFrom( "C:\windows\system32\inetsrv\Microsoft.Web.Administration.dll" ) | Out-Null
                
                $sites = (New-Object Microsoft.Web.Administration.ServerManager).Sites
                
                foreach ($site in $sites) {
                    $CustomFields = $site.logfile.CustomLogFields | Select-Object -ExpandProperty SourceName

                    [pscustomobject]@{
                        Name = $site.Name
                        LogExtFileFlags = $site.logfile.LogExtFileFlags
                        CustomLogFields = $CustomFields -join ', '
                    }
                }
            }
        }
    }
}