I can't seem to find a way to create a callout line in a Pro scene to recreate what is easily done in a web scene.

In Pro 3.4, I have my points symbolized relative to the ground with an offset above my buildings, but I can't find a symbology option to get a line extending down from my point. I've tried adding an additional symbol layer as shown below but the offset doesn't work out. What am I missing?
