How to use the simulated merge cells in OneNote native table?

OneNote native table cannot merge cells. But sometimes we really need to merge cells in a table.

OneNote 2013 native table new provide set a cell background feature - "Shading Cell".  We can set the cells background to simulate the merge cells in OneNote native table.

Follow is a sample:
 

We can merge the cells below of the "Sun, Mon, Tue".
 

Fill with the "White, Darker 25%" color, we can see these cells seemed to be a merge cell .
 

Of couse, we also can use all sorts of color to make these look like merge cells.