Use this procedure to remove individual grid lines from a volume. You can remove grid lines from the X, Y, and Z planes separately.
Note: You can remove lines only from volumes which have been inserted with manually spaced lines or evenly spaced lines. Layout volumes with lines placed at a fixed repeated spacing value cannot be changed. For information about grid modes, see Changing the Spacing Mode of Layout Grids.
- Select the layout volume.
- Specify the axis from which to remove the grid line:
If you want to remove… Then… a grid line from the X plane of the volume click 
. 
a grid line from the Y plane of the volume click . 
a grid line from the Z plane of the volume click . 
- Click the grid line to be removed from the volume.
- If you have removed a line from a layout volume with manually spaced lines, the specified line is removed from the volume. The position of the other lines remains unchanged.
- If you have removed a line from a layout volume with evenly spaced lines, the specified line is removed from the volume. All remaining lines are recalculated, so that they are evenly distributed again.