How to set different inactivity and Max session timeouts for the users in the different AD group

You would do something like this, just adding other criteria to the switch statement.

when ACCESS_POLICY_AGENT_EVENT { 
     check for policy agent_id 
    if { [ACCESS::policy agent_id] eq "set_timeout_values" } {
        switch -glob [ACCESS::session data get "session.ad.last.attr.memberof"] {
            "*CN=Standard_SSL_Users*" {
                ACCESS::session data set session.inactivity_timeout 150 
                ACCESS::session data set session.max_session_timeout 200
                log local0.notice "Inactivity and Max timeout set (1)" 
            }
            "*CN=SSL_Users_2*" {
                ACCESS::session data set session.inactivity_timeout 200
                ACCESS::session data set session.max_session_timeout 300
                log local0.notice "Inactivity and Max timeout set (2)" 
            }
            "*CN=SSL_Users_3*" {
                ACCESS::session data set session.inactivity_timeout 300
                ACCESS::session data set session.max_session_timeout 400
                log local0.notice "Inactivity and Max timeout set (3)" 
            }
        }
    }
}