1. Products > Merchandise > +Add (follow steps) > Select "Is this item a gift certificate?" 

If you do not see option for "Is this item a gift certificate?", please email support@trytn.com to open this feature.

> fill out fields* > save changes > select advanced settings > Save Changes

*Example price options:

2. Change the "Merchandise" tab name: Settings > Custom Labels > Rename Merchandise Tab to something such as "Merchandise and Gift Cards" > Save Changes