ActiveCaimpaign : How to send First and Last Name fields separately?

Is there no option to send separate first name and last name fields? My only option is to pass full name, but my forms, AC automations and AC emails use a separate first name and last name field.

First name and last name fields are treated as one when your form is integrated with ActiveCampaign. Hence you need to send this field as one to ActiveCaimpaign as shown below - 

Let me know if you have more questions.

Thank you.
Mike...