RM 2.2 How to set time limit on New Resources widget

We have created a custom front page on which we show a few widgets that show the most recent content. Using the New Threads widgets, we can limit the display of threads for a specific age. As an examaple we use a forum announcements widget (based on New Threads widget) that only shows forum announcements younger than 2 weeks. If no such threads exist, the widget won't be shown on the front page.

We would like to do the same for XFRM content. On the fronty page we would like to show only XFRM posts younger than 2 weeks. Using the XFRM: New Resources widget however, I don't see this option for a time limit. How do include a time limit in the New Resources widget?