Which are the max Y position (height) of SetHeights and how to control it?

Hi,

I want to know that for know if it's possible to control the Y position and know it's position with SetHeight function for make the terrain more detailed and easy to make new relief...

What is the maximum height with 1? And 0?

Thanks...

EDIT:

Well I had solved that... The minimum value, ie, 0 in SetHeight function is 0 in the Y coordinate, and the maximum, ie, 1 in setHeight function is 600 in the Y coordinate... but I don't know if that values can vary, or can be changed, or something like that, can somebody ans to me that?