Just bought the Professional version of this, mostly for the larger size Heightfield (up to 131,072 × 131,072...

Just bought the Professional  version of this, mostly for the larger size Heightfield (up to 131,072 × 131,072 instead of 2049 × 2049) and the Map batch generation. Have been playing around with the free version and like this a lot.
http://www.bundysoft.com/L3DT/