uwl attribute based object attribute

[Shai Eyal]

hi all,
I added column to UWL based WEBFLOW_CONTAINER and it works well as long as it read simple container element. However I would like to read attribute of an object that exists in the workflow container. This object is not the leading one therefore I can't use ABAP_BOR. 
Any body know if I can get object attribute using WEBFLLW_CONTAINER? What is the syntax?

Thanks in advance,
Shai Eyal