About Captive Portal user(Erase when expire!)

[jackyzrk]

as the title said! We know that captiveportal will delete users automatically when they're expire!

But I want it just stop the user to access the internet and notice them instead of erase the user!

How can I?

I had try to delete the erase code in "captiveprotal/index.php", but it still erase my users when they're expired. Can somebody help?