How to add a row or column
1 In the layout editor, hover the mouse pointer over the bottom left corner of the grid until you see the Grid tab, then choose the tab. Guide cells appear at the top and left side of the grid, as shown in
Figure 6‑6.
Figure 6‑6 Guide cells support adding rows and columns
2 Right-click the guide cell in line with the space where you want to add a row or column.
3 Choose one of the following items from the context menu to add a row or column in the desired location:

Insert
➛Row
➛Above

Insert
➛Row
➛Below

Insert
➛Column to the Right

Insert
➛Column to the Left