Hide footprint in Plant Layout Design?

Hi,

I have a questions regarding the view of the footprint in Plant Layout Design.
How can the footprint be "hidden" behind the objects? I want to be able to see the footprint (i.e. not hide it) but I do not want it to be seen through the objects.

The first picture is my view, and the second picture is how I want it to be. How can this be done?
Thank you in advance!