In your form's OnCurrent event, which fires every time you get a blank record up, put code to disable all the controls in the 'embroidery' section of the form. In the section of the form that analyzes the order, check the items. If the order is for an item that can be embroidered, enable all the disabled controls and set focus to the first text box in that section.
Alternatively, you can add a field in the table, maybe call it Logoable. Make it Boolean, and make sure that the user who enters the description knows it's there! When the customer orders any Logoable item, your code can read the field and enable the disabled controls as before.
Either way, after the record is saved and the form blanks out for a new record, it will display with that section disabled.