Calendar presets: Allow non-consecutive dates

 I'd like to be able to create calendar presets that have non-consecutive date ranges, e.g. "Current month and same month last year" or "Last five Tuesdays". In order to allow flexibility without being cumbersome, this should be done by allowing a Qlik formula and the best approach is probably to require a list of separated dates, which could be created using concat(). However, any other approach which allows the same result of customized, non-consecutive date ranges would be good.