Set element parameter from containing list

[Schasfoortyoeri]

i m trying to write BoundingBox name to all elements inside the bounding box.
If i take an element, how do i get the list above?

[Fiesta]

like this:

[Schasfoortyoeri]

I mean i want to get the listname of an selected item.

Like this:

I want to write value a to the parameter “Comments” of element b

[Schasfoortyoeri]

That basicly was the solution oops…

I didnt know that list levels worked like that… awesome

It only works for ungrouped items somehow anyone knows a solution to that?