Via Settings > Forms
Under the Settings > Forms tab, select the form that you wish to edit.
On the Forms Editor, you can easily edit an existing application form.
By clicking on a field, you can change the label, adjust the form settings on the left, or delete the field entirely.
You can re-order the sequence of fields by dragging and dropping the field elements.
Once you are done editing your form, you can save changes in the upper or lower right corner.