Use this procedure to add grid lines to a grid. You can separately add grid lines on the X plane and on the Y plane. If you are adding lines to a custom grid that was created by applying tool properties to linework, draw the new line or lines in the desired position before staring the procedure.
Note: For non-custom grids, you can add lines only if the grid was inserted with manually spaced lines or evenly spaced lines. Layout grids with lines placed at a fixed repeated spacing value cannot be changed manually.
- Select the layout grid
- Select an add option:
If you want to add a grid line to … Then… the X plane of the grid click 
, then proceed to next step. the Y plane of the grid click 
, then proceed to next step. a custom grid that was created by applying tool properties to linework click . Then select the linework to be added, and press Enter. Press Enter again to keep the linework, or enter y (Yes) to erase it. - Specify the distance of the new grid line from the start of the grid.
- If you have added a line to a layout grid with manually spaced lines, the new line is inserted at the specified position. The position of the other lines remains unchanged. The grid size changes accordingly.
- If you have added a line to a layout grid with evenly spaced lines, the new line is inserted and all lines are recalculated, so that they are evenly distributed again. The grid size remains unchanged.