This is the documentation for ConfiForms Server/Data Center app
However, this might also work for ConfiForms cloud and in most cases it does. But please see this page to understand the differences between server and cloud versions of the ConfiForms app.
With smart classifiers you can build quite complex ConfiForms forms which use and reference the data from each other.
Sometimes, you want to reference a particular smart classifier field only (and not the whole record)
Let's consider the following setup:
This way you can reference any field in the related form, like to reference field "t2" you will write [entry.sm.t2] or just sm.t2 if used in ConfiForms Field macro
UPDATE
Since version 1.16 you can reference ANY field from a referenced Smart field, that means: when you have a reference to other form you can easily get any field values from that form though this reference. Our value finding methods are now much more advanced and allow you to do that.