Add Schedule Weekly, Monthly Yearly, After Added to the List

Hi, I would like to have some extend of schedule feature. I would like to add to send recurring emails weekly, monthly, quarterly, half-yearly, yearly. Most important is to send emails weekly after being added to the list, send monthly after being added to the list, send quarterly after added to the list, send half-yearly after being added to the list, send yearly after being added to the list.

Send after being added to the list will solve a great need for those, who want to use it for subscribers purposes. For example, if I want to send monthly or yearly payment notifications, I could use that schedule.

Please consider those must-have features in the next update.

Regards
Mohsin Alam