Business Configuration Object - Drop Down

Dear Experts,

In my custom project, I created a BCO with a BCSet, BCView and BAC.

I would like to use this BCO in a QC view of a custom BO.

Is it possible?

/////// current development:

In the custom BO i declared:

whereas ZPRODUCTGROUPCode is the BCO with BCSet named KVG.bcc

In QC view:

In the UI:

when I click on the drop down, the field could not find any value.

////////

Many thanks

Best regards

Linh