HOW DO I ADD A DROP DOWN MENUE TO A EXCELL SPREAD SHEET WITH HIDDEN NOTES I

HOW DO I ADD A DROP DOWN MENUE TO A EXCEL SPREAD SHEET TO COLLECT CLIENT INFO AND DATA, WITH HIDDEN NOTES IN THE FIELD NAMES BUT WHEN I CLICK IN THE FIELD NAME BOX I CAN ALSO CLICK THE NOTES THAT ARE ATTACHED IN THE FIELD, IM PULLING OUT MY HAIR IN JA