i hope i named the software right ...but here is my issue

i would like to start selling decals/stickers online...and i would like to create a field for color,,,size (all done) but can i create a drop down box...to input customer info....in other words the customer buys a skull image, chooses size and color,,,,but now wants his custom name over it...i would like a box where client can input what he wants (letters) is this possible....thank you

Put an input text box for the text that user wants to submit on the form.