The Range Picker allows you to filter the query by a date range, beginning with the From date, up to and including the To date. Select the required level of granularity, then select the start date from the left, and the end date from the right.
The example below filters the query by all dates between 1 April 2009 and 30 September 2009, inclusive:
This is an efficient way to filter the query by a range of dates that doesn't correspond with the granularity. For example, if you want to filter by Q1, you can either select Q1 from the Quarters level in the Simple picker, or you can select the start and end dates for Q1 from the Range picker; the easiest option is the former.
However, if you want to filter by a range of dates within Q1, say, 29 January - 4 March, this is easily achieved using the Range picker.