We executed a paid advertising program back in the summer where we obtained 231 leads/conversions (not all were acquired by this program). We would like to see how these leads have engaged with any of the other campaigns since then. If we filter on the program name in RCE, it's only going to include activity in that program. Instead, we want to include any other program where the leads have engaged. Had all of these leads been acquired by the paid advertising program, we could simply filter on that. But that's not the case. Any thoughts on how we can include only those 231 leads - aside from filtering on their email addresses, which would probably crash RCE - and including all program engagement across all programs?