controlling APM access policy from iRule

Hi friends , I am new to f5 Apms -irules in particular , I would like some hands on my scenario . We have got multiple clients whose session MAX & Inactivity timeouts needs to be different from one another .

The resource assignment for the clients are based on the AD group. I've manged to put together a irule and decided to call this irule in the APM Policy just after ad query .

I wonder whether this irule script is correct ? and on the apm policy editor , when i select irule-event there is an field where i need to type in Custom-iRule-Event-Agent- ID which is i believe is the irule name !!!

when ACCESS_POLICY_AGENT_EVENT { set AdGroup [ACCESS::session data get "session.ad.$name.attr.group.$attr_name"] switch -exact "$AdGroup" { 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" } } }