Not sure if this has been raised already but it would really help to improve the marketing email filter in a few ways.
1. Be able to exclude rather than just include. E.g. Create a list then exclude anyone who has been sent another email similar. I know can do it in workflows but would be useful in lists too.
2. Be able to select multiple emails at once. E.g. select clicks from a whole campaign’s worth of emails for a final reminder etc.