The next update, which features complex rule-based sending, should have both of these features. While it's not finished yet, I plan to expand the rules feature to allow one to perform actions beyond sending email. You will be able to select users with the rules then perform commands such as updating fields, custom data, dates, followup sequences, HTML setting, merge with other lists, etc.
Thanks for your kind words and great suggestions. If you like, post a Testimonial and include a signature so you get some free exposure to your web site!
Regards