object references are not showing up

Hello friends,

I have a standard form with temptable as a datasource. I want to understand where how the table is populated so I try to find any object references. However, no references are shown. The temptable is from Application Suite model. What is the problem? Could it be related to the fact that I m searching while in different model (custom model for the company). It would be nice if you could help me in this.

Best regards,