How can we attach a pdf file when we use PDF_REPORT_CREATED event with Rest Call Action type?

Hi Community,

A Quick question here.

Is there a way we can attach pdf files by passing a parameter like “&PDF_FILE” when using PDF_REPORT_CREATED event with a Rest Call Type Action? 

In the Event action page currently it provide only a button to attach the items. But can we use the Payload to pass a parameter like below? (IFS VERSION - Cloud 23R2)