Axes are automatically chosen to fit the minimum / maximum range of your model.
This dialog lets you define your own axes:
Check this box to define your own axes.
Set the min / max range for each of your axes.
Resets the min / max ranges to those automatically set from your model dimensions.
Set the number of intervals you want displayed on each of your axes.
The number of decimal places to be displayed for the axes.
Set the label offset to control the distance between the axes and the labels.