Dynamic contact field values in Campaign step

Curious if in a Campaign, on the “Update contact” action, if you can populate a field dynamically from the value of another Contact field? I have a date that I’m capturing during form fill with Javascript that I dump to a custom Contact field. I want to populate that value across to two other fields on the Contact entity with an Update contact flow step.

Here is a visual example of what I’m trying to do - Example

There is a value already in the DB for “Capture Date”. As a step in my campaign flow, I’d like to move that value to the field, Acquisition Date.