The "rolling period" date filter is really useful. However, it seemingly is only available on certain cards. It would make things immensely more useful if it was actually available as a dashboard-level filter - so all cards could make use of this.

My use case example is a dashboard showing completed tasks over a rolling 60 day period. If this was available at the dashboard level, all cards on this dashboard would make use of it, without the need for additional card-level filters.