You will see the subscription list option for opt out in a journey ONLY if your journey audience starting point is a subscription segment.

Thank you -  I have reached out to the ACX team to see if anyone can shed some light on it.

I see where you are going...but if I go from the workflowLog to the workflow schema and look at the XML memo - It will be the entire memo contents and not restricted to that particular activity right? So then I would have the same issue where I will find the searchString in the memo but not be able ...

Looking for functionality to search for all workflows that might use a particular table or a field on a table…etc. The report they are looking for would be at a campaign/workflow/activity level. The user would provide the word to search for.   For example: searchString = dateOfBirth   campaign1     ...