I'm sorry in the question not understood easily.
I am using the Photoshop to make the Terrain map.
I want to buy if Leveller is more convenient than the Photoshop and to make a Japanese manual as well as Terragen2.
However, I am not good at English.
Before the purchase of this software, I heard the voice of the user here and wanted to make reference of the purchase.
Thank you gregsandor.
I will examine a little more, and buy it.
What is everyone using for the tool?...