I am aware that you can overlay a KML polygon in mission planner but it’s just a "dumb"line on the map.
To use the auto-grid tool you need a mission planner polygon.
I am aware you are able to import .poly files but I am unaware of a way to convert a KML to .poly
Is there any way to be able to import a KML polygon and then use that directly for planning a waypoint mission? At the moment I am having to import the KML, draw a polygon over it which is tedious and inaccurate.