Inside a constituent's record on their Gifts Tab you will see a green Add button. When clicking this button you will be shown two options "Gift" and "Donation via Page". Gift will launch a blank entry page so that you can enter any Gift Type or Payment Type you wish. Donation via Page allows you to select and use any of your online donation forms to process a credit card donation. Gift will launch a blank entry page so that you can enter any Gift Type or Payment Type you wish.