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1. A new row will be available in the grid section.
2. In the Id field, select the column. The Description field will then show the description of the selected column.
   
3. In the Action field, select an operator.
   

4. Repeat steps 1 to 3 as necessary to build your formula. 
   

   Info
   Notice as you work on adding rows and assigning an operator, the Preview field at the bottom of the screen will show you the configured formula. In that way, you have a better view while you are building the formula.

   Note
   You will not be able to close the Column Calculation screen until a formula is configured. If you unintentionally selected the Column Calculation column type, then you may click the Delete toolbar button so you can close the Column Calculation screen without having to configure a formula. This will then also delete the column calculation column added.

5. Click the Save toolbar button to save and Close toolbar button to close the screen and apply the formula to the selected column.
6. You will be back in the Column Designer screen. In the Related Columns field, notice that the formula built is shown.
   

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