Split Tunneling for Remote Client VPN on SSG 140

Hi everyone;

I have created a remote access VPN (Dialup VPN) for remote client who will use ShrewSoft VPN client.  I would like to disable the split tunneling while it is connected, I do not want the user access to the internet from their own device while the Remote VPN tunnel is built.

I cannot find the "split tunnel" feature on SSG 140 interface, if anyone know how to do it, can you share your experience?

thx!