Display posts from a different website on Genesis Responsive Slider

In the homepage of this website, I have the widget Genesis - Responsive Slider.

From the Genesis - Responsive Slider Settings, one can see that it is picking up the posts from this website.

However, I wonder if, instead of picking up the posts from this website, it can pick the posts from this other website (whose parent theme is also the Genesis Framework) and display them in the slider.

If yes, how should one proceed?