Edited: How to add a personalization box in the Expression Theme?

Updated, after searching, I realized I needed to add an app - I read reviews and added the Textbox app and it only took me a few minutes to have it up and running…

Hello,

I recently upgraded my shop with the Expression Theme. Many of my products have personalizations - text, photos, etc. Is there a way to add a box to capture this when they order like I do on Etsy?

Do I need to buy an app?

Thank you,

Jean