I would like to render an EXR Z depth pass using Arnold in 3ds Max 2019. These renders will be used to show depth of field information in an animation I am compositing in Adobe After Effects. I am having trouble getting the Z depth pass to work correctly - when I render the Z depth pass, the image appears black (instead of the usual grayscale gradient). I have brought the render into After Effects and changed the exposure, which does reveal the solid color of the objects in the scene, but still does not contain the gradient information necessary for the depth of field information.
When I have rendered Arnold Z depth passes in 3ds Max 2018, and Z was selected in the AOV tab, a drop down tab appeared that allowed you to adjust the minimum and maximum parameters, thus controlling the range of the gradient (example image below). I cannot seem to find a similar tab that allows you to change this range in Max 2019. How should I go about changing these parameters in Max 2019 in order to render a Z depth pass with the correct gradient information?