Get the name of the current container of an embedded dashboard

Hi everyone,

In a dashboard that I'm developing I have multiple dashboards embedded into one another.

Within one of the embedded dashboards I have a button that is associated to a dashbaord extender rule. When the button is clicked, I need the rule to retrieve the name of the dashboard that is currently the container of the embedded dashboard where the button is placed (see scheme below)

Primary dashboard
               Embedded 1
                              Embedded 2
                                             Embedded 3
                                                  -> button

I see there are two  rules (args.PrimaryDashboard and args.EmbeddedDashboard) that allow to retrieve the name of the primary dashboard OR the name of the current dashboard (Embedded 3 in the example).

I need to retrieve the name of Embedded 2. I couldn't find any resource that explained if and how to do that.

Does anyone know how to do that?

Thank you