Go to Admin portal, and navigate to the lefthand panel.

Therein, select Preferences and Settings dropdown menu, and then click on Preferences.

Navigate to Pricing Quotation Preferences, and open that dropdown menu.

To specify the title for the design fee, navigate to the row titled Exclude From Quotation, select the Edit icon against that row.

In the window that opens, specify the columns to be excluded by checking the boxes against the desired fields.

Select Update to save changes.

Go back to Design portal, create a new design, and generate your pricing. The changes would be applied.