How to add the "processed" status in the list of statuses on benefits "Evaluation and reporting"

Summary:

Earlier we had the processed status option in the list on benefits' reporting and evaluation area (please see screenshot for visual explaination). from past few releases I have noticed that the "processed" status is no longer longer available as a drop down option.

Can someone help us on how to add it back to the list of values?

Content (required): The processed status helps us in reporting all processed events through benefits admin self service. Else we need to take help in creating a report

Version (include the version you are using, if applicable): we are currently on 21D