Merging and Splitting Cells:
This must be done in Standard View.
Merging:
1. Select cells to combine by dragging across them or ctrl (PC) clicking the ones you want to merge.
   
 
2. Hit the Merge button 
  in the properties inspector
  

Splitting:
1. Select cell to split.
   
 
2. Hit the split button 
  
   
 
3. A dialog box will appear. Choose to split the cell into rows or columns and specify how many.

4. Click o.k.
