KML Overlay Adjustments

I imported a KML file for an area to be represented in mission planner, however, the area shows up as filled in all white with very low transparency so it is very difficult to see the map under it.

How do I adjust the transparency of the overlay in mission planner so I can plan a mission within the boundaries of the KML file?

Also, how do I delete an overlay once it’s been loaded?

Thank you

No ones using KML overlays?