I use that program a lot, it however doesn't suit this need
Business calendar does do this. When you create your entry at the bottom select weekly. Under that there is a box that you can select every 4 week's plus an end date if needed.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer? | Terms of Service