If you want to query the details of events that are delivered to Simple Log Service in the ActionTrail console, you can use the advanced event query feature. This topic describes how to enable the advanced event query feature.
Prerequisites
A trail is created, and events are delivered to Simple Log Service. For more information, see Create a single-account trail and Create a multi-account trail.
Background information
The advanced event query feature can be enabled for only one trail within Each Alibaba Cloud account or Resource Access Management (RAM) user.
Procedure
Log on to the ActionTrail console.
In the left-side navigation pane, click Trails.
On the Trails page, find the trail that you want to manage and click the
icon in the Advanced Event Query column. If the following message is displayed, the advanced event query feature is enabled. 
What to do next
After you enable the advanced event query feature, you can query the details of events on the Advanced Event Query page.
If you want to disable the advanced event query feature, click the 
icon on the Trails page.