Is it possible to set DoF on a singular GameObject?

I have been wrestling with the latest URP and Post Processing and layers and Camera Stacking and I am not able to set Bokeh Camera Depth of Field on a singular GameObject without it effecting all other objects in the scene.
I have tried having a Base camera render culling to nothing and have 2 separate Overlay cameras each with their own cubes and each on their own layer and only one with a volume and post process setting. When I run it though the post process effects both cubes.
Does anybody know if this is possible with URP?

Cheers in advance,
Lindsay.

 

This may answer
https://forum.unity.com/threads/cam...y-different-post-processing-to-the-ui.830778/

 

Thanks @JacobFast but unfortunately not. I think I have honed in on this is more likely to be a problem with the SteamVR plugin rather than a Unity issue.
As soon as I add a second camera to a scene, brand new or even if it is a duplicate of the original SteamVR player camera and then I make it an overlay and stack it then I get a wierd double eye vision thing going on (each eye is rendering both left and right eyes).
I don't think this one is solvable unfortunately. I will think of another way around trying to make one thing look blurry rather than actually using stacked cameras.