Doing some digging with a teammate today it was incredibly difficult to find information on how to automate the settings change of the Sessions tab on a user object. Different paths indicate we need to edit the userParameters attribute but you've probably found that it's a binary blob and not easily manageable. Perhaps you went down the iadstsuserex road as well. If so, you might want to take a shower and come back now...
Well without further ado, here it is!
# Get the current settings
$admin = [adsi]'LDAP://CN=Administrator,CN=Users,DC=extestdc,DC=extest,DC=microsoft,DC=com'
# Update to new values in minutes...
So that is how you do it in powershell. Hopefully someone searching for this topic in the future will find this.
Much easier than vbs.