Allow setting a custom filter as default for a report

usecase:

• report that pulls HOUR records (timesheet entries) for a group of users.
• since the dropdown filters are *additive* to those set in the report definition, the report itself can't have a filter e.g on HOUR:entryDate
• create custom filters, eg this week, last week, 2 weeks ago etc

Problem: the report will first run without filters, bringing back up to 2000 rows (depending on user prefs)

Even with 100 rows, it's a waste of time. I'd like to be able to select a filter which which to run the report by default (in my case "Current week".

This default filter should be applied regardless of whether the currUser has access to the filter (or, make it an option)