Automatically Add date Range - 7 Days

Hello,

I'm writting a Crystal report on all order sent out in the past week.
I all works fine, but I am now trying to take away all the steps I can to make it easier and quicker to run.
The report has to inputs, the ClientCode and the Date Range.
Is there any way/Code that I can use to replace the need to input a date that will get the report to take todays date as the End range ( which is does at the moment ) and the - 7 days and use the result as the Start Range?

Thanks in advanceYou could use the LastFullWeek function in your record selection.

{table.field} = LastFullWeek

GJ