These could probably all be their own topics, but I like how they tie together.

First - Adding the use of Functions and Variables to the Defaults in User Filters would give developers so much more flexibility for their report writing.

Second - Allowing the use of the Default Values in a Date User Filter (here comes the tie in) with the use of Functions would allow the use of things like From: DATE_ADD(DateField, interval -7 day)  To: MAX(DateField) as values while allowing us to retain the use of the Datepicker instead of a Relative Period dropdown.

Third - Why can't I use a single Datepicker instead of an Actual Period dropdown? Selecting the same date twice in the Date Range Datepickers is just counterintuitive.

Thanks your time, can't wait to hear your thoughts.