Nintex Forms not allowing fill-in values

I am working on designing a Nintex Form in SharePoint. The choice drop down does not allow fill-in values. The SharePoint list field is set to allow fill-in but the control in the form does not allow user to enter values when required. I am using the “New Responsive” designer. Is this available in another option?
I do not want to use radio buttons as the drop down selections is a large set of values.

Appreciate any help.