Responsive forms - set field value feature missing

Hi,

We have SharePoint 2016 on prem and Nintex Forms version:4.5.0.1

Is the set field value feature as shown here:

https://www.nintex.com/blog/whats-new-automatically-fill-forms-set-field-value/

Meant to be available for your on prem product?

As we currently do no see it within the responsive form designer.

Thanks
Ben