Thanks Greg. You’re right; this isn’t going to be available imminently, I’m sorry.
You should be able to export data from Breww using the Raw Data Explorer that can be readily imported to Klaviyio. If you need further help on how to do this, could you please post in the Help & advice category, and we’ll be able to help you (this is managed by a separate team from the Ideas & feature requests category).
Thank you 