I'm currently using another provider that I got on a LTD for a membership site and we've discovered that all it allows me to do is add a new user to a list. I need to be able to move user between lists when they upgrade their membership or delete them when they cancel so they are getting the right email automation. I'm having to do this manually at the moment (which is a pain) so I'd love it if you could tell me that your system can do all of this with a Zap :-)