Hi @Chau Tran,

This block requires no configuration per si. What is in red, are the events that you can attach your code to to know when the user clicked in the notification and when the notification was actually received.

The only thing that you are required to do, is to click on the right arrow, and select the option "New Client Action". With that you're telling that that new action will be invoked when a specific even happens (e.g. the user clicked in the notification).

Let me know if this helps you out,

Cheers,

RG