Many people who design tables use diagonal lines to indicate empty data or corrected information. InDesign lets you apply diagonal lines inside cells.
To add diagonal lines in cells:
1.
Select the cells you want to modify.
2.
Choose Table > Cell Options > Diagonal Lines. The Cell Options dialog box opens with the Diagonal Lines options selected .
The Diagonal Lines controls under Cell Options let you add diagonal lines to cells.
3.
Click one of the direction controls to set the direction of the diagonal lines and their styles .
The direction controls for the diagonal lines in cells.
Examples of how the diagonal lines can be used in cells.
4.
Set the Line Stroke options to format the appearance of the line .
The Line Stroke controls for diagonal lines let you style the appearance of the diagonal lines inside cells.
5.
Choose one of the following from the Draw menu:
Content in Front positions the diagonal line behind any text in the cell.
Diagonal in Front positions the diagonal line in front of any text in the cell.