In an Automation, the options are different properties of the object. Depending on the field type, different properties are available and surfaced in the Automation.
Name - the value that you see in the Airtable UI
Length - array length...
This thread has an example of copying a field to another while also adding the current date.
Using a script to add values from one field to another Scripting app
Non-developer type here! My team is using Airtable as ...