Change DOF focus distance over time in matinee?

I added a camera track to my matinee, right clicked on it and added a float property track and selected “PostProcessSettings.DepthOfFieldFocalDistance” However, modifying this value on the timeline doesn’t seem to do anything in the preview pane.
I do have DOF set up how I’d like it in my postprocess, I just want to tweak focus distance in matinee.

Thank you for your time :slight_smile:

Solved!
Issue was the type of interpolation that was selected, switched to auto and it fixed it.