add an option under recurring that allows for On Completion
At the moment you can only set recurring events on dates, like the 1st of every month, ect. With the On Completion option ticked you will still set recurring timeframe, let us say 4 weeks, but now the recurring task will be set to 4 weeks from the DATE OF COMPLETION of the last task. Example: Lets say you want to be reminded to cut your hair every 10 days and you set a recurring reminder with On Completion option chosen. Now the task will apear in the next action list, but let us say that for some reason you could not cut your hair for 4 days, then after the cut you mark task as done, it should now reset for 10 days from the completion date.