Yes! PLEASE.
You may want to add your vote here as well: https://missive.canny.io/feature-requests/p/create-rules-from-search-filters-and-apply-them-retroactively-to-previous-e-mail
Actually saw you've already upvoted, my bad ;-)
Is there a button to manually push rules?
Manually activate a rule - yes!
This is a huge one for us and something we use quite frequently directly in Gmail. We tag for organization and when we need to re-categorize something or add a new category it also requires applying to the existing conversations. Many times it's not possible to manually do this for each email + set the rule.
I can do this in Gmail still but Missive won't pickup the changes since, I assume, they have already scanned those emails and don't look back.
Would make things so much easier!
It is possible to create rules based on "User Actions" not just Incoming and Outgoing email. However there are currently limited options.
One that I would like to see is "star" - if I add a star to an email then I want to be able to create rules based on that condition.