Columns Button
Click on the Columns button to select which columns you want to see in the grid.
Properties Button
The Properties button allows you to change, add, or delete properties, and create or change formulas.
Click on a takeoff in the grid and then click the Properties button.
The Properties window allows you to change the selected inputs of the Item. To make greater changes, select the Advanced button.
When done, click the OK button to close the window.