Display data from the BOL in mixed mode context node with value node

Hi, SAP CRM Gurus.

There is a task to output a table with values from both standard Product BOL and 2 user defined variables, which come from some separate function.

In order to implement such task I created a separate view, in whizard I defined model context node, based on Product BOL, than I selected specific BOL's attributes in Product's relations and at the stage of value node attribute definition I added 2 wanted variable.

As result I've got view with table type context node, which contains fields from BOL (model node) and user defined fields (value node). In other words we have to deal with mixed mode context node.

After some attempts to fill-in this context node, I achieved result when user-defined fields in this mixed mode context node are filled correctly, but default BOL's fields are empty.

Example

Instead of:

we get:

Could somebody provide an example how to work with mixed mode CNs?

Or explain me what's wrong in my case, why I can't see a city name, while in debugger I 100% see these values?

Thanks!