John, the default world size 1024. To change this, add a size bar to the
Globals actor in the Action Script. Enter the world size you desire in x,
y and z up to 32K. –Rick
Imagine does auto set the world size. The default is 1024 x 1024. If you
mean you'd like to see the world be dynamic and for the program to adjust
itself, that hasn't been worked out yet. –Rick