To split a table cell:

1. Double-click inside the table.
2. Click on the cell you wish to split.
3. Select Split Table Cells from the Table menu.
4. Specify the number of columns and rows to create using the Split Table Cells dialog.
5. Click OK.

Tip: Multiple table cells may be split at the same time. To select multiple table cells, hold down the Control key (Ctrl) on your keyboard and click on each additional table cell you would like to select.

Step 1:

Step 2:

Steps 3-5:

Result: