DC Attributes of a copy

Hye there

This view shows a wall (DC) and a first window (DC) on left and its copy on right.

Please, how do I do to acceed to the attributes of the copy from de Wall please ? At the time I always find those from the first window.

Here is a picture to explain what I need

It all depends on how you ‘nest’or organise your model.
If you opened up the wall component and placed the window, you need to ‘drill’ in it’s context (usually by double clicking with the select tool)
Check the outliner panel in the trays ( if you can’t see it, [menu]Window > Default Tray and check the outliner panel)