By default, the following columns will be seen for an item in the quote: Item quantity, Labor, Total cost, and Total price. However, you can also show Length, Unit Cost, Unit Price, Margin, Markup, and Taxable columns.
To hide or show columns that aren't displayed by default, click the 3-dot menu above the Item Search box and click "Show/Hide Columns."
Click the name of the column you want to see, and it will be displayed. The same process can be performed to hide columns that you want to be hidden.