select entire calendar week (not single day/Month/year)

[pixpro]

Hi there,

first i'd like to thank the devs for the really smart datepicker :)))

The only thing i'm missing or rather couldn't deploy yet, is to select a calendar-week (or the at least the range) instead of a single date. Is there a way to setup the datepicker like that??? 

Thanks for any hint! Best Stefan