From what I gather ISE does not support pausing the output. you can stop it with Ctrl+c but can not resume it. Instead what may be useful for you. You can send the console output to a file for perusing. I found two codes depending on the version of ISE you are using. I believe you change "Test" to what you are trying to output.
PowerShell version 3:
Clear
Write-Host 'Test'
Start-Sleep 1
$psise.CurrentPowerShellTab.ConsolePane.Text | Set-Content -Path iseoutput.txt
PowerShell version 2:
Clear
Write-Host 'Test'
Start-Sleep 1
$psise.CurrentPowerShellTab.Output.Text | Set-Content -Path iseoutput.txt
This was the best I could find as Powershell ISE doesn't use Pause like cmd. Another option is if it is possible for you to run your script in Powershell (not ISE) then you can pause output with Ctrl+s.
If this is not what you are looking for, I am sorry as I only use Powershell (not ISE) instead of cmd.
1could not believe ISE does not support CTRL+s/q yet the standard powershell command window does. Thanks for the clarification. – rob – 2016-12-02T16:23:01.167