Search on "locked" status not available in relationship view

オフライン

Hi,

As you can see in the following screen capture, an ItemType (in fact, a relationship with NULL related) can be filtered on "locked" status when displayed from global table:

 

But, when the same ItemType is displayed from a relationship view, this is no more possible:

Why ? Is there a solution to allow filtering on "locked" status on relationship without related from the relationship table?

Regards.