Exiting from a powershell menu - powershell

Question

I've created a powershell menu script but occasionally I don't want to use the menu function I have created I want to come out and run a custom command, or even better add a menu feature which allows me to write a custom command.
Can anyone help me achieve this please?
write-host "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
write-host "Exchange Online Management"
write-host
write-host "Press 1: To assign Full Access To A Mailbox"
write-host "Press 2: Get Mailbox Size"
write-host "Press 3: Custom Exchange Command"
write-host "Press Q: To Leave Exchange Management"
write-host
write-host
write-host "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
$SM2 = Read-Host "Please Make A Selection"
Switch ($SM2) {
'1'{
DO something
}
'2' {
$Mailboxuser = read-host "Who's Mailbox are you trying to query?"
Get-MailboxStatistics $Mailboxuser | ft DisplayName, TotalItemSize, ItemCount
}
'3' {
return
}
'Q' {
Remove-PSSession $Session
return
}
}
}
until ($SM -eq 'Q')

Answer 1

The PowerShell console window is closing after it has finished executing your script.
You can get around this by running another powershell process with your script:
'Q' {
Remove-PSSession $Session
& powershell
}
The other option is to create a shortcut to your script and add the -NoExit switch, which stops the window from closing when the script is finished.
PowerShell -NoExit "C:\folder\script.ps1"