How can I capture the WebApplet drilldown Event on the Preload.js Open UI file?

I have to capture the drill-down event of a Applet in Open UI JS file to prevent a User from Unauthorized access to a record which he is not supposed to see.

In our current application, we do not have Position, Division or User based access control for visibility.

Can I capture the drill-down WebApplet Event on the Preload.js file?

I got the below code on Oracle Open UI Bookshelf but need guidance on how to use this script on Preload.js file. Does Open UI calls this event on Preload?

Siebel Open UI triggers the PHYEVENT_DRILLDOWN_LIST event when the user clicks a drilldown link in a list applet. You can use it to call custom code when the user clicks a drilldown link. You can use this event with the following objects: