Modify Navmesh At Editor Time - Where are my variables/properties

Hi, I am working on a RTS Game which means I need to have a couple different bounds:

  1. Map bounds
  2. Navmesh bounds
  3. Virtual runtime texture bounds for minimap
  4. Terrain capture camera bounds for minimap

I think it would be good to be able to update the bounds and click a button to update them. So I see there is a NavmeshBoundsVolume which has a “Brush Settings” for the size of the navmesh area. I started writing a function to update the navmesh bounds but I can’t work out what I need to set.

For context I’m coming from Unity where generally these kind of bounds are easier to manipulate and find in code. But I looked at the header file and I don’t understand where on Earth the Brush Settings came from.

Maybe what I want is impossible and I will have to manipulate the scale of the Navmesh bounds and not the actual bounds.