Create export-csv with dynamic (unknown amount) columns

Question

Hi,
This is my first post, hopefully I include everything you need.  My code block is at the bottom of my post.....
I have written a PS script that gives me the info I need, but I would like to format it differently.  Currently I import a CSV with 2 columns - username and print queue name.  The script then takes each username and looks it up in SCCM
to find the workstations the username has logged into.  I then export to csv - this is where I would like to format it differently.  The export csv has 4 columns username, print queue name, workstation name, and details. 
username1,printqueue,workstation1,details
username1,printqueue,workstation2,details
username2,printqueue,workstation1,details
username2,printqueue,workstation2,details
My problem is that if the user logs into 5 workstations I have 5 rows with duplicated username and print queue name.  If my next username logs into 8 workstations I have 8 rows, etc.  I would like to format the export dynamically using as many
columns (not rows) as need.  For example
username1, printqueue,workstation1,workstaion2, workstation3
username2,printqueue,workstation1,workstation2, workstation3,workstation4
I expect where I have my pscustomobject would be where I could change this - I have tried setting up a count variable and using that in my loop to be able to assign dynamic column name, I have tried using an array but still new to setting that up, maybe
I just wasn't doing it correctly.  If anyone has any ideas that would be great.
Thanks, Kevin
Here is my code:
#Declare variables
$now = Get-date
$date = get-date -uformat "%Y_%m_%d_%I%M%p"
$Queues = Import-Csv "c:\Users.csv"
$SiteName="XXX"
$SCCMServer="your.sccm.server.com"
$SCCMNameSpace="root\sms\site_$SiteName"
$CSVPath1 = "c:\PrinterUsersByComputer_$date.CSV"
#Notify user that script is starting
Write-Host -ForegroundColor Green "Starting script"
#Loop through each account and find any workstations from SCCM that the user has logged into
foreach ($Queue in $Queues){
$Queue.Username
$WSs = Get-WmiObject -namespace $SCCMNameSpace -computer $SCCMServer -query "select Name from sms_r_system where LastLogonUserName = '$($queue.username)'" | Select-Object -ExpandProperty Name
#Check if the workstation variable has data
if ($WSs){
foreach ($WS in $WSs) {
#Check if workstation is ALIVE and if we have access to it to get OS version
$rtn = (Test-Connection -Cn $WS -BufferSize 16 -Count 1 -Quiet)
IF ($rtn -match 'True') {
$OS = Get-WmiObject Win32_OperatingSystem -ComputerName $WS | Select-Object -ExpandProperty Caption -ErrorAction Stop
#Write to screen device to show progress
Write-Host -ForegroundColor Green "Computer information found: $WS"
#Write to log file the username, workstation(s) logged into, and OS version
[PSCustomObject] [Ordered] @{
'UserName' = $Queue.Username
'Print Queue' = $Queue.PrintQueue
'ComputerName' = $WS
'Operating System' = $OS
} | Export-Csv $CSVpath1 -Append -NoTypeInformation

Answer 1

Ok, just a sec, I'm not sure we are on the same page.  I don't think that isn't what I'm look for. Unless I'm missing something, your code above assume 4 workstation columns for every row.  What if there is 5 or 8.  My current output
from the full script is this (based on checking if PC is pingable, whether I'm denied the WMI query, etc)
UserName
Print Queue
ComputerName
Operating System
User1
PQ1
Computer1
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer2
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer3
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer4
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer5
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer6
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer7
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer8
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer9
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer10
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer11
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer12
Microsoft Windows 7 Enterprise 
User1
PQ1
Computer13
No device name to query
User1
PQ1
Computer14
Microsoft Windows 7 Enterprise 
User2
PQ2
Computer15
Microsoft Windows 7 Enterprise 
User3
PQ3
Computer1
Microsoft Windows 7 Enterprise 
User4
PQ4
Computer2
Access denied connecting to device.    No access to it: Computer2
What I would really like is this, getting rid of the OS name for now:
User1
PQ1
Computer1
Computer2
Computer3
Computer4
Computer5
User2
PQ3
Computer1
User3
PQ13
Computer1
Computer2
I would just like to condense the workstations to columns instead of 1 workstation per row and be able to expand the # of columns required based on the amount of workstations in $WSs -