==Adding a formula to a XML cell (working with data in the same section)==
# Navigate to your custom field.
# Click the '''Section Builder''' button in the action bar.
||=[row#,column#]*[row#,column#]
|}
So if you wanted to add the values of row 1 and 2 together in column 1 you would enter '''=[1,1]+[2,1]'''.
==Adding a formula to a XML cell (working with data in the different sections)==